if the pack is balanced charged everytime and kept in a metal box, and is not mishandled they should be fine, they supply the current alot better.

if they could be a check in the tech check of having a balancing unit for the lipo that would be good also

if you don't think lipos are good for you then use a123's, also don't get cheap and tacky lipo's with lipos you get what you pay for, look into flightpower, thunderpower and outrage lipos these are some of the best