Unless you're very familiar with the 10/22 trigger and trigger work in general the drop in kits are the way to go. Brownells sells several and the Volkquartson(sp) version I have handled and they work well indeed.. great pull weight and minimal creep and backlash!! Adjusting the trigger on any auto rifle has a few quirks.. buy one of the kits, install, and enjoy.. good luck from the gunnut69