Everybody, thank you for the advice and sorry for the delay in telling you this. A lot of intelligent, helpful posts here. And, as always, I could count on very educational responses from the "usual suspects": @bodia,
@dogrocketp,
@Mozzi @sergiodeblanc and others.
This is not to say that I am no longer confused. I am. I had related about playing the McCarty 594 at the store and it feeling good in my hands. And I've been playing my Paul's mostly lately. But yesterday I picked up my HB, which has a really thin neck profile, and
it felt great! Have I mentioned I'm confused?!
But I'm just going to need to play them so more and as I progress decide what's best for me. I remain concerned about buying a guitar that I may later regret. But what was surprising is the number of posts relating adjusting to what whatever neck profile the poster was playing. Which leads me to my other "ah ha" moment:
I am probably overthinking this. I have a tendency to do this.
Thanks again to everyone for the education.
I do think that you can find necks to be comfortable within a range of measurements and often, the different necks, set-ups, scale lengths and tones make you play different, bring something out of you that others don't.
Unless you are playing show after show after show, having a specific neck may help. Its so familiar that you can play the show on auto pilot, hit the bends without having to hear or be aware - its just so ingrained that there is no thought. It has to be a certain way so that you can keep playing without any discomfort.
Whilst that maybe the case for their touring guitars, they often play a variety of guitars when at home or in he studio if looking for a certain tone or inspiration but when it comes to touring, it has to be a certain neck shape to play for hours without stopping or really thinking.
That may also make it a bit more difficult to find the exact measurements if the neck shape that is 'perfect' for you because you are not playing for hours on end, night after night without taking a 10minute break, waking up the next day with discomfort now the adrenaline of the show has worn off. At the end of the day, its more beneficial to have a range of neck shape and measurements that you can comfortably play as that also increases the options of which guitars you can buy. If Pattern Vintage was the only shape youo could play, you would only have the 594 guitar but if all the pattern shapes, despite the differences are all comfortable, that gives you all the PRS (except those unique to Signature models unless they are comfortable too) as options. You wouldn't want to be limited to just a 60's LP neck and can't play anything else.
I can go from the Pattern Thin to the pattern Vintage and its just a moments thought that the neck feels different but getting used to the different switch position takes more thought to get used to it. I am reaching for the blade instead of going for the switch on the top horn and that for me is a bigger difference. All the 'C' shape guitars don't feel significantly different enough to warrant any thought for me. Things like weight, layout, PU's and any mini toggles even the guitars with a middle PU (509, Special) can be a more noticeable difference. Now I know there is a difference and if I had to focus on the neck for an A/B review for example, then of course I could feel the difference BUT swapping between them for my own personal playing pleasure, literally putting one down and immediately plugging in another, the difference in the necks are not significant enough that it sticks out more than switch/knob layout, scale length and string tension, weight, pick up layout, bridge type (trem, tune-o-matic type and fixed adjustable with Piezo) resonance and tone - whether unplugged or not (my HBii for example is much louder than my solid body 594 for example) etc. Despite all having the same body shape and name on the headstock, all my guitars are different and those differences are more signifiant to me than the necks. The only one that really jumps out is the Pattern Vintage because its shaped differently but even that is nothing more than a momentary thought that flashes past as I grab hold of the neck but then my focus shifts to all the other differences and the music I am [attempting] to play.
I can't speak for others but as long as a neck is within certain parameters, ie not too thin or thick, not too narrow or wide, then I am comfortable. Add in things like fretboard radius, frets and scale length too, there are numerous parameters that you could really try to focus and narrow them down to be 1 definitive neck for you - ie a C shape with X width at the nut any Y thickness that must have a N radius and M fret types. Scale Length has to be S" with T number of frets. Only Set neck with a sculpted heel and anything that doesn't conform to those specs is not for you. Or you can be someone that picks up a guitar without any preconceptions about the neck and feel how it plays as part of the complete instrument. So what if you find one guitar you really gel with but is chunkier than your Wizard neck guitars you 'thought' were the best for you. Its more important to takr the instrument as a hole and only worry about the neck if you want to buy online. If you love the Pattern Vintage because you tried it in a shop, that means you can look online and buy ANY 594 and there are a lot of different options from double to single cut, hollow to semi to solid but because you know that neck feels good, its safe to assume that all the other 594's will feel good too. Its the same if you try a Pattern, Pattern Regular or Pattern Thin too - like all of those necks then if you see a great deal on a PRS, you don't have to worry about whether or not the neck will be too thick/thin et.
With more and more people buying online, its becoming more important to have more info on the neck - measurements and shape. If you buy in a shop, it wasn't important because you would just sit down with it and find out how it feels. CNC too has helped by making necks more consistently, reduce the tolerances so that the necks are all within much smaller fractions of a mm - there is still some tiny differences die to the hand sanding but so close its not worth worrying about. As long as its not uncomfortable, it doesn't matter and can be beneficial to have a range of necks that are comfortable - not just opening up a wider range of guitars but also can be inspirational too...