Looks like my solution is rechargeable 9v's and a modded KCY LB
Bean ur going to spend more on all that than picking up a couple of tekkeons. I would get 2 tekkeons and maybe one extended battery and I'm sure you could make through any festy. Throw in a couple packs of 9v in ur bag just in case. That way u get ur sax for everything.
I refuse to use Tekkeons after reading the threads here on ts.com
I DEF PREFER the life of NIMH batteries over Li-ON