I've installed the Glock oem 8 lb. connector in both Gen 4 G21 and G19 . I love them . Shorter , cleaner take up and reset , and fast crystal like break . I still haven't gotten the hang of posting in the new format . 3/4ths of my post was lost ! Suffice it to say I'm looking for feedback from a collective group of Glock owners whom are a great deal more experienced than I . I'm no longer grouping to the left . My finger pull is now at the joint , and not the pad . But I've shot with both connectors with both pull techniques and I'm more accurate with the heavier pull . I haven't found the pull to be much heavier , rather than a more abrupt , vertical break , if you will . Joe