Yesterday I started the EDT Lose The Fat, Keep The Strength program. I enjoyed this type of workout. I've done some density training before doing the rosstraining program but that was only 1 day out of the week and usually it was 1-2 exercise with a finisher. Would it be to much to do some hill sprints on the off days (tues, thurs, maybe sat.)? My hill sprints sessions are around 15 minutes.