I just got my M327, and I already have to call Taurus customer service. I'm an idiot, and the sear spring went sailing off to some dark corner of my apartment while installing my Wolf hammer and trigger springs. The good news is that single action works fine, and that pull is sweeeeeeeeeet. Super light, smooth, crisp... it's perfect. I'll call Taurus in the morning to grab a few sear springs. Any other spare parts I should get while I'm at it? I'm thinking a few extra side plate screws would be a good idea, and maybe a firing pin + spring if I can get one.