Flexing motor mount?

[orangecrush]

When I did my conversion, I used Mike's motor mount instead of Tekno's. At first, it was plenty tight, I had to grind down one of the end pieces that the opposite end of the motor rests on but nonetheless it was tight.

The poor truck has been through hell in the last few weeks and now my motor mount flexes. I've tightened all the bolts but can still wobble the motor slightly.... slightly so that I think when I back off the throttle, the truck comes to a sudden slow down because I think the spur gear is being pushed harder against because the motor is making the mount flex.

Does anyone have any experience with any other brand motor mounts? RC Monster's mount is great, I think I may have pushed it past it's limits and worn it out already.

Thanks,

Mark