The Mk1 huntsman that I've bought is great but I've noticed that the second stage of the trigger is a bit 'graunchy'! That's probably a bit strong a description but I can definitely feel metal on metal. Mine has the optional upgrade trigger, I believe the standard is only a single stage. The first stage is also very long but I'm getting used to that. How difficult is it to strip the trigger & polish the internals? Would a lube help? Or do I need to give it to a professional?