I have seen the same experienced pilot do the same thign twice over 6months. Forgot to check his ailerons. On his nice big Extra he tried to get it back using rudder-he didnt. On his bype, he had them hooked up backwards. Did the most spectacular roll on take off and came down hard on the gear. Actually it was such a smooth manuever , it looked like he planned it. Got lucky and only replaced the gear.