Going down weight after first set?
This might be a really stupid post but please bear with me 🥲 I started going to the gym a week and a half ago, and I like doing EZ bar preacher curls. I do 7.5kg each side for about 8 reps, then try doing the same weight again for my next set. When I do this, I can’t get past 3-4 reps, and consequently have to lower it to 5kg on each side, after which I can smoothly do at least 6 reps for 2 more sets.
Thing is, I can usually bang out at least 2 sets with the same weight in the 6-10 rep range for every other exercise, so is it normal to be like this for preacher curls?