Marty,looks to be great tune done from a minimalist approach As an FYI on that finer detail some have done on the BAM platform is that when you LOSE that massive hammer you get benefits that are beyond just efficiency gains * Shot cycle is sped up quite a lot giving a lot shorter "Lock time" so the time elapse from sear break to pellet launch happens faster.*Shot cycle vibration from accelerating the hammer, thump as hammer strikes valve decelerating becomes much reduced.* End result of those 2 factors alone is much improved accuracy potential Good work !Scott