Ummm, well, what you do to modify your guns is up to you, but frankly, I've got 150+ plus guns and if I paid someone to improve the triggers on each an every one of them I'd be filing for bankruptcy. I think the real pro learns the trigger of each gun and adapts his technique to use its trigger in the best way possible way within the limitations of that gun's trigger action. Improvements in gun actions don't altogether make up for deficiencies in technique. Not saying you have any, and by your description it sounds like you're already shooting quite well. Just realize the gun isn't always to blame, and whatever work you have done to your trigger may in the end not have as much benefit as you think it will. Unless you're engaging in competition, some minor marginal improvement may not be worth it, IMO.