I got the service kit last week and got a chance to fit it today. Well it was the first time I have had a springer in bits and it was a rather easy job to do. I will admit I didn't polish the piston I just fitted the replacement spring, guide and top hat. But the difference in the way it shoots it's like a different gun. It's smooth to cock and when fired its got a gentle but positive nudge to it. I didn't fit any of the adjustment washers and after 20 shots over the crono it running at a nice 9.9ftlbs. I'm assuming this will rise slightly as it beds in and settles down.