[RC-Monster Mike]

The mirrored mount strategy wouldn't work with this Losi(any of them, really) - the center diff is quite a ways off center, which angles the front-center drive shaft quite a bit and would severely limit gearing possibilities. The ESC placement was for left/right weight balance. The diff, motor, steering servo and radio box are all right-side-mounted, so the battery tray, esc and batteries in their current location created a near-perfect balance using a pair of 5400 4s Hyperion packs as a baseline(figured most would opt for 8s and at least 5kmah capacity). The V2 tray should be done tomorrow, which is just slightly longer and wider to accomodate a wider variety of pack combinations. I may do a few "other" layouts as well - the HK 8000mah packs are huge, so a strategy that allows a pair laid down with the ESC directly behind the center diff may be an option.

I have seen the other 2 options - don't think either is as well thought out or balanced as my kit(my biased opinion of course) and both are likely much more expensive(the one Kershaw is offering is 2x the price). :)