Pull ups: impact of splitting sets over the day? I'm currently doing a set of chin ups and then a set of pull ups maybe 5x a day.

Basically whenever I walk past the door with my bar set up I'll take a few secs and do a few reps.

Reading the FAQ I understand that decreasing rest time between sets helps with progression. 

Am I just wasting my time by having mega-rest time?

Thanks all.