I recently purchased a Model 910. I know that it is essentially the same as the Model 410 (.40 cal.) and the Model 915 (9mm, 15 Rds).
Somewhere recently I came across a video which was a how-to on polishing some of the innards. Smoothing the action was naturally the purpose, but another result was a reduction in trigger pull. I thought it was a very good video, not very aggressive gunsmithing, certainly something I would be willing to do myself. I intended to revisit the video at a later time.
Unfortunately, I can't seem to find it now. I've checked YouTube, searching under the various models (910,410, and 915), but without success.
My hope is that someone on this site will know the video I am talking about and be able to point me to the right place. Anyone able to help?