Things to check/ adjust (just my oppinion)
- Diff adjustment; the AE stock settings are very good, and you can adjust the front a tad tighter
- Slipper adjustement: it needs to slip a few feet on a hard takeoff. the slipperier the track, the looser you can set it
- Tire choice: are your tires the best for your track? And are they in good shape (not worn down?)
- Suspension components: check them for cracks. These coudl affect handling under hard acceleration (I had a cracked shock tower do this once)
- Punch control on your ESC. If your fingers are having trouble modulating power output of the motor, this can help you out a bit.
- Suspension tunning/ weighting the buggy: playing with all this can find you more rear traction, but will require quite a bit of effort trying things out. Weight towards the back, lighter or no rear sway bar, oil weights in shocks,, wheelbase, etc...
Just food for thought!