Originally Posted by NoRacer
If lactate tolerance is partly the goal, then you need incomplete rests. The time for these rests will be dependent on how well you recover, but you can start at 3 minutes and pare it down from there or increase it a little if you aren't getting enough rest.
It seems to me that any decrease from full recovery will make the interval efforts more aerobic than otherwise. If that is a goal, fine; but I would suggest it's best to focus on VO2max in VO2max intervals and work the aerobic system in intervals devoted specifically to that.