It can screw you over if you go the whole fight with it. I've done some experiments and one of the things i found that worked well was tanking when my endurance was really low or if i'm facing another war tank that started tanking before me, i set tank for "my endurance is less than my opponent's". If they tanked first, when you both reach 0 i always won and they passed out. Don't know if it's just a spiel in the system but it works for me. I've obviously changed a few thing here and there otherwise i wouldn't be posting these tips. Keep in mind my stable has only fought bout 125 fights (only 12 of them losses) so i'm pretty green compared to some of the other more experienced stable Masters. This is just one strategy i've found that works wel for MY level of competition. The situation may vary depending on the bracket and level of your fighter. Hope this helps a bit guys. Fell free to add on to it.