Great flight!  Tried G64 again, but with a 4 sec delay even though Estes notes 7 sec delay for the G motors.  Also used rail buttons mounted to the side of the rocket.  Nice straight boost and with the 4 sec delay I ended up with (and I'll quote the announcer here) "perfect deployment".   Good chute and rocket then drifted just a bit past pads and landed on some hard pack dirt with a "thud!" and someone behind me even said "ouch!", but I said no worries since it's built strong and I saw it land square on the bottom.  Sure enough, I got there and the rocket was in great shape.  Love the Mega Max!