Went and got a full fitting a couple of weeks ago: outside, off grass, using trackman. Tried about 6 different shafts and an equal number of heads. Ended up being recommended the Callaway Apex or Ap2 (somewhat surprisingly, I LOVED the apex, and will be going with that one), and KBS Tour-V shafts. Loved everything about, only issue is price. The Apex heads, custom built KBS Tour V's (something about specific frequency, stiffness, etc.) and grips comes out to close to $1500. This is about 50% more than I'd pay going strictly off the rack from a big box store, or about $300-$400 more if I buy from the fitter but have stock shafts (still to my specs, but not custom built). Basically I'm either paying $75 per shaft or $20 . . .
My question is whether the fully custom built shafts are worth significant price increase. I want to play the best I can, but of course I'm not getting paid to play. If fully custom clubs could lead to 4, 5, etc. strokes off per round, than I'm game; if it's something I'll barely notice however, that's a lot of cash compared to off the rack.