Waldo, Sonnytex has a thread where he relates the problem of breaking motor mounts with his Twist/.70 Surpass combination. He's busted two sets of mounts. You might check it out and see if you could help him with his problem. [link=http://www.rcuniverse.com/forum/m_4824899/anchors_4834732/mpage_1/key_/anchor/tm.htm#4834732]Mount Problems[/link]