Your chances of burning muscle off with insanity are great. I have seen the results in person of friends who have used it. Yes they did get lean....yes it works pretty quick....however they all lost way more muscle then they would of had then done it with normal cardio....it might not have been as quick....but the amount of muscle Ive seen ppl lose from insanity was mind blowing.
Sure the gear will help with that....but I dont see you adding any new muscle even on a cycle if you do the insanity how its supposed to be done...PLUS LIFT.....seems like over kill to me.
For someone who is 30-40+ lbs over weight....sure insanity is great....but those ppl that out of shape could prob never complete the program.
But make sure you take before and after pics so you can get one of those awesome t-shirts!!!:headbang: