You are bidding on an ORIGINAL synergy. I bought this bat as a pre-order direct from easton. The bat has NO SERIAL NUMBERS ON IT. I barely used this bat because it was banned quickly and i did not play any usssa, w the bat is legal. i shaved down half the handle because i swing with my bottom hand half off the bat and it made it more comfortable. It has absolutely no negative effect on how hot this bat is. The bat has less than 150 swings on it. This is the real deal of all the bomb droppers ever made. Bid with confidence, you will not be disappointed. Please mail me any questions and i will do my best to give you a quick and accurate answer.