I have a Mini cat and it goes like heck I did put a little weight in the nose to keep it down and it worked. I am having a problem with it stopping during a run , I will run it for two three or four minutes and it will stop. then after 5 sec or so start right up and go like heck. it will stop again and same thing start again. it is getting water for cooling i bring it in and check nothing is to hot either? not sure what the problem is. I have two sets of lipos and it will happen with both batteries too. thanks for any help I can get guys. brian Ok