lipo questions...

Hey everyone, I have some questions about lipos…

I am thinking of getting one of these two lipos
http://home.comcast.net/~truerc/custompack.htm (the 5s pack at the very bottom)
and
http://www.tanicpacks.com/catalog/pr...roducts_id=588

which would give me more runtime, the 8000mah or the 5000mah because of its higher discharge rate.

Also, should I stick with 5s with the Quark 125, or try 6s? I know people were having trouble with 6s and I don’t want to make a very expensive mistake….

(BTW I can get the tanic 5s 5000mah for around 210 or so….)