Does anyone have any experience with drop-in parts to improve the trigger on a BHP (FEG actually), or is this strictly a gunsmith job. My FEG shoots great, but the trigger breaks at over 7#, and that's just a bit heavy for my tastes. I'd like to get it down to around 3.5-4#, but I don't see any option other than a professional job. By the time I pay air shipping both ways, I'm into the trigger close to $200, I was hoping to avoid that.