I have a P229 Elite Stainless with the SRT and the reset is short, about 1/8 inch from trigger against the frame. With the installation of some type of trigger stop you could probably get it down to about 3/32 inch. However the DA trigger pull has never smoothed out to the level of the non SRT trigger on my P239 and from what I've heard a gritty trigger is one of the tradeoffs for the SRT.
The other tradeoff is a lot more obvious and that is a LOT of Sear Creep. It's long enough that I actually took the time to measure the full length of the Sear Creep and it's a whopping 0.070 inch. Compare that to my P239 and the Sear Creep on that non SRT pistol measures at a revolver like 0.018 inch. Yeah, the Sear Creep is darned near 4 TIMES as long as on the non SRT trigger. The reason for that is that during development of the SRT trigger Sig discovered that if the shooter "rode the reset point" the weapon could double or triple fire. Since newly manufactured machine pistols are NOT legal for sale to private citizens in the US Sig Sauer increased the length of the sear engagement surfaces to insure that they couldn't double of triple fire under any circumstance of use.
Personally I don't shoot my P229 very much and part of the reason is the creepy trigger. It actually bothers me enough that I've actually thought about sending the pistol in to Sig Sauer and having it converted to the older non SRT trigger. However, I've found that the basic platform cycles so smoothly that it's actually a bit boring to shoot. The P239 on the other hand is not the least bit boring, it's a bit of a rip snorting sort of pistol that lets you know you've sent a sizzler downrange. For that reason I'll also tell you that IMO the SRT trigger is rather useless in the 40 caliber P239. While it's not a beast in terms of recoil there is enough muzzle flip that you won't recover the target quickly enough to see any benefit from the shorter reset. BTW, with practice I've been able to get down to a 0.22 second split with the P229 while holding within a 7 inch sticker at 10 yards. With my P239 my best effort to date for that same group size is a 0.33 second split. Ammo used in both instances was Federal Champion 180 grain and the shot timer used was a CED 7000.
