I have used the search function but most of the returns were about airplanes. I am looking to buy some new six-cell packs (preferably with a capacity over 4000mah) for my E-Maxx and Losi DT. Both of the trucks are not stock (the E-maxx is running a Dual 970 motor conversion with Novak Superduty XR ESC, and the Losi is running a Notak Tempest ESC with a modified 17-turn motor) so I would like something that has a large discharge rate. I saw tha packs a promatch.com were pretty cheap (about $25 for a 4200mah six-cell) but I am not sure if they are any good. If you know of any other sites that have great prices let me know. Also I was looking to stay under or around $30 per pack if possible.

Thanks!