I've been incrementing weighted chins by 1.25lbs each session, and I do chins 1x/week for 3x5. My bodyweight has been increasing, so this is screwing up my progression. Two weeks ago, I did 35lbs for 3x5. Last week, I did 36.25 lbs for 1x5, 2x4. Today, I repeated 36.25 for 2x5, 1x4. I weigh 3lbs more than two weeks ago, so I'm actually lifting 4.25lbs more than two weeks ago, when my linear progression called for a 2.5lbs increase over two weeks.
A couple of questions:
1. Since I missed today's lift (2x5, 1x4), and didn't even come close on that last rep, should I repeat the weight, or drop it down to 35? If I miss again, do I deload?
2. Do most of the guys who are bulking and doing weighted chins weigh themselves beforehand, so they know exactly how much weight to add to get the desired incremental increase?


