This is a tough session. I’ve done a 15×3’/1′ which obviously is done at a much slower pace. This one has a nasty combination of fast pacing and short rests, so you are digging yourself into a hole pretty quickly. I’ve been doing a lot of distance and threshold work lately, so this was a bit of a shock to the system. I was on slides. Not sure if it helped or hurt. Well, I know it hurt, it hurt a lot. I just don’t know if it would hurt more or less off of slides.