Originally Posted by
Maybach
The cutoff for when you introduce weighted chin ups is around 15, since 15 is a (slightly arbitrary) cutoff for when you start getting into conditioning stresses for the movement.
The only way to strengthen a movement is to add weight. So, you add weight.
For all the reasons I laid out before, chins are an assistance exercise. Your progress on them is going to follow, not lead, progress on the other lifts. Like Rip said, the specific way you do them doesn't matter: incorporate them into your routine in whatever way fits. If they get stuck, but the other lifts are progressing, it doesn't matter.
You're getting yelled at because a) you are doing dips, which are not in the NLP. They have very limited utility as an assistance exercise for the bench, and there's no reason to include them unless they are actively doing something to increase your bench. Which it doesn't seem like you know they are doing. And b) you are doing 35 reps of them. Nothing you do for 35 reps constitutes a force production stress. I know this seems arbitrary but think about it for a second. There may not be a "hard cutoff" for when to stop including bodyweight exercises but if there were, it would be less than 35.