Let me see. I do (30 sec on 30 sec off, 20 sec on 10 sec off, pyramid intervals, 1 minute intervals, hill standing intervals at 70 rpm, sufferfest intervals) but this one seems to be what I choose if I'm not motivated/ don't feel like pushing myself/ just want to get something easy. I think misunderstanding here is since it's my favorite intervals, its the only interval I do.