Tjk,Thanks for the reminder about the stock seal. Its been at the back of my mind I'm only tempting fate shooting the San Rafael with its original seal (I think). I do have an extra for it, so I'll probably go in and replace the old one soon. I don't want to have to deal with all of the crumbly bits and having to clean out the cylinder when it goes. What do you suggest for minimizing the spring buzz if I still use the original spring? I don't know how I'd tighten up the fit, especially since the rear guide is integrated into the trigger group. Do you suggest a front guide or something? It would be great to lessen the buzz and still use the stock spring! Motorhead it sounds like your gun came back shooting really well. Get that old trigger back in there and you should be golden. I wish I could shoot as accurately as you do at 50 yards like that. I'm still shooting between 20 and 30 yards and while I've gotten better, I still have a ways to go to match you. Main thing I think is finding the guns' preferred pellets. I'm well stocked on .22 cal. pellets, but don't have many varieties in .177... yet!