Motor loosening with RCM Losi 8 mount?

Hey guys, I have Mike's mount on my Losi's (buggy and truggy) and in the 3 times I got to use the buggy last year, I had a DNF twice due to the motor loosening and rotating. I think part of the problem is there is nothing holding the motor flush with the mount except the top screw. I used loctite on both screws, but the top screw keeps loosening and allowing the motor to rotate. If anyone has any ideas on how to keep this thing from rotating so much, I'd love to hear it.