Plus one on both David Slade and Scott Blair. David hasn't done an FWB for me, but I have a couple of other guns he tuned - he is very well respected, and he really is good with the trigger work, and the FWB's trigger could use as much help as it can get (at least compared with an HW rekord trigger).
Scott did my last 124 (based on the advice of Kingfisher) and I was very impressed. He prefers the Maccari "slightly softer" kit, which will drop your velocity to the low-mid 700's initially, recovering to more like 750 or so once it breaks in. I was skeptical (why would I want LESS velocity and power??), but ended up giving it a try and I have to say, the gun is one sweet, smooth shooter - one of my favorites!
Or, if the gun is in perfect cosmetic condition, I'd say forget the whole thing and just sell it to me! I only have two right now, so I obviously need another one (right John?)