I'm 75 kg,the heaviest iv ever been,I do the pyramid pull ups every 4 to 5 days depending on how sore I am lol
10 underhand grip,then straight after 10 wide grip,then rest depending on fitness,back in an do it again for 9 each,rest back in 8 each an ye get me drift,I done it the other day in under 30 minutes,don't know the exact time as I was f****d an forgot to look until I got my breath