i agree MoDad, i have never seen anything go wrong with a TPX bat, yet with the EXO i havent seen that much of a break (90 deg), but my teamate broke his by a piece of the carbon fibre coming lose so he just returned it and got a new one, besides for the flex ive been told that TPX have a short life of "pop", where as demarini are more durable and last a long time with the same pop from the first year to a good 2 years later, but personally, i have always use TPX for about the past 5 years and i am not ready to change to a flex bat but maybe change is good, that was my 7 cents