My 2005 CE-24 came with the stock HFS/VB. I wasn’t a huge fan and I wanted a more balanced set. I changed them myself a few times. Ended up with Fralin Unbuckers. I also replaced the rotary switch with a toggle for simplicity. Pretty simple mods.
Many folks seem to believe PRS’ older pickups are generally not as good as the newer ones (except 53/10s). Some folks swear PRS pickups still lag behind other makers. PRS pickups are pricey, but in line with competitors, except Duncans which are a steal.
The PRS PTC currently charges $150 for pickup install, plus cost of the pickups. That does not include shipping out/back. You can supply your own pickups. If you live close enough you can pick-up/drop-off at the factory.