What bounce do you have on the wedges?

One thing is set wedges have less spin vs specialty wedges (i.e. Vokeys).  100 yards is not uncommon for a gap wedge nor 85-90 for a sand wedge.  Even with my old irons (X31) I could hit the PW 130 yards and barely hit my Harmonized SW (55) 100 yards awhile ago. But why does your PW yardage vary by 30 yards? (or is the range from fully choked down to full grip).

My PW is 45* and I hit it about 110.  My GW is 50-08 (bent to 49) and I hit it about 95-100.  Theoretically. 4* loft difference is 10 yards.    I get about 80-85 yards out of my 54-14 and 65-70 out of my 60-10.    The 60-10 is an SM4 so I understand that because it has much more spin vs SM c-c.

I can vary my pitching wedge on a full swing from 110-90 by choking down.  I can vary my full pitch between 60-80.  10 yards for every 1/2" of choke-down.

The 52 is a low bounce and and 56 a medium 

James,

Bounce relates to the turf interaction of the club, and should not impact distance on correct ball strikes. The explanation above regarding set Pitching Wedges and "specialized" gap, sand, and lob wedges would explain the distance differences correctly. When fitting for wedges, determine type of ground you will play on most, that determines correct bounce for you, then use lofts for correct distances you require.