Took my GenXL out for it's first spin last weekend. SP GT v2.1 EX, SP 1S 17.5. Motor was barely even warm after 8mins, so there's more to be had out of it!
rollout: 80mm (44/76, 44mm greylow rears)
firmware: 211
DDRS: 9
Boost: 40
Boost Start - 2000
Boost Ramp - 200
Turbo - 24
Turbo Ramp - 24/0.1s
Turbo Delay - 0.2s
Going to try upping rollout to ~83 with a 46T pinion, and leaving the settings the same.