i just bought a used s&w 9gve sigma. like the gun the looks and the 16 round capacity but im having a hard time getting used to the heavy trigger pull i cant seem to be accurate with it. im used to shooting my glock 23, 21 and i love their triggers. is their any way to reduce the pull? i shot 100 rounds through it today and still couldn't seem to get use to it and be as accurate as i am with my glocks. had better groupings with my 21 than with my sigma 9. maybe just more practice?