Chin up 1rm vs pull up 1rm
How much more weight can you normally chin compared to a prone grip pull up? I want to compare my current chin up strength to my pull up strength of my youth, to gauge my progress. I never did chin ups before but I did a double bodyweight pull up at about 180 pounds, and could also do a few unilateral chins. I am guessing it's normal to chin about 10-15% more weight than you can pull up, because of the involvement of the biceps. I also curled 150 pounds so my biceps strength was decent. Anyway I'm estimating my best chin up would have been somewhere around 400 pounds combined total weight. So when I progress in my training to 350 for 3 sets of 5, I'll know I've surpassed my previous strength.
I've become somewhat obsessed with keeping track of my "starting strength total" (all 6 exercises) relative to the best lifts of my prime, so I can know for sure at what point in my training I've become generally stronger than I once was.