I missed that the troops die if destroyed moving flat out.... ouch. That would hurt! But I do think its worth the risk, and gets a 50/50 cover save by going flat out.
Well, I'm going to attempt list at an 1850 level tourney in a few weeks, I don't expect to place... just to have fun.
will let you know the outcome when completed.
Tyranid battle saying: "Grrrrrr, Hiss, Grrrr, Drool, Grrr..."