Racing battery choices

[RC-Monster Mike]

When I raced My ERevo, I used to do 30 minute mains with a "cheater" battery swap. I used a series connector between the ESC and batts and started with a pair of 2s 6000mah packs wired in series(4s). I could get 20 minutes on this setup in the ERevo and when I came in for a battery swap, I pulled the series connector and one of the packs out and installed a single 4s 3700mah pack in its place to finish. Basically, I only had to swap one pack this way, which saved me some time. The 2nd "pit" is basically a trip through pit lane.