OK... round 1... Observations are made with guitar ---> Line6 G10 wireless ---> Kemper on clean Plexi profile ---> Xitone MBritt powered cab with open back.
The 305 pups are a tad darker than the SS. 305 has less of that "quack" on tap. I'll give a nod to the bass output on the 305, but just by a hair.
Volume wise, the SS takes it by a nose, as those pups are just a bit hotter.
Note separation... well I'll give the nod to the Silver Sky, but dayum the 305 is no slouch in this respect at all!
I would say that the 5 positions are a little more diverse on the SS, but the 305 has very usable tones in every position.
Dual tone knobs makes for a little more versatility on the SS.
Hum is about the same on both guitars, both very good for single coils.
The feel...
305 wins all day with that awesome PRS carve. It's a small amount heavier for obvious reasons but that doesn't matter to me yet.
I can easily swap between necks without issue, and that is something I did not expect. They are both interchangeable for playability.
Trem on the 305 is not locked for dive only, so might be more flexible for some stock. That being said, the SS can be setup for that too.
I like the metal tuner buttons on the 305 more, but that is certainly subjective.
I'm also a sucker for wood grain, so the 305 wins there for me too.
Overall, if you want to get that 5-10% closer to a "S" type, then a Silver Sky is worth the effort and cash.
If you have a 305 already, you might be forgiven for thinking you're good to go... cuz in most/many ways you ARE!
Next up, crunchy and gain tones!