Safe? probably not. Can you get away with it? more than likely. I've done 65 before, never had a problem. I would rather see you lower it to about 50 and up the tren to 75 ED. i say this cause I've noticed little difference bvetween 40 and 65 ED If you go 75 get some liv-52 or something of that nature, start it about 2-3 wks prior to the winny.