I just recent purchased a Smart Parts IMpulse, and am dissappointed with the trigger... I have herd of a site named wermmods.com and i like their "Werm stick" trigger. However, my quest is it says that i need to specify with trigger (spring style) i have old style or new style how do i find this out, i open my gun and saw only circuts...if somebody could help me id much apperciate.