screw the dx7, more worried about your hands!!!
checking the net - it looks like the nimh batts in the dx7 are crap
http%3a//www.rcuniverse.com/forum/fb.asp%3fm=6405339
http%3a//www.runryder.com/helicopter/t381713p1/
http://www.helifreak.com/showthread.php?t=50841
lipo is looking safer lol
perhaps this is the nasty little secret behind the blade 400's delay?
edge