well you can proly specify the tap at the time of the order for custom packs but if not it will say in the description what tap it will come with and if it is not just than you can buy an adapter to be able to balance it.
Today a package from LiquidRC has arrived: Proline Commando Beadlocks, silver version
Tomorrow my Bow-tie's and LST shocks arrive, Friday my Savage X and FLM chassiskit:)
If you are running on 6s an Feigao 11xl or 12xl is a good cheap motor. An 8xl will run stupidly hot. I have the 11xl but haven't been able to test it fully due to the MMM issue.
The 2 speed is useful though. When I first ran my car it was pulling a huge number of amps but the car was going into second really quickly. I adjusted the shift point screw so second kicked in later and it dropped the amp draw considerably on the second run. Due to the MMM failing though I don't think I was able to actually hit second gear though on the second run due to space limitations. So I don't know if when it hit second it would pull more or less amps then what it was when it was set to change earlier. My guess is it would pull a bit less.