Hi JVille,
Looks good.

I am using the 1415/1Y in the Kyosho GP20 car, earlier than your model. Still running another 2, but 2 speed nitro, one with stock GS.21 motor and other nice OS.21. Heap of fun mate running them together.
Your car is very clean & nicely laid out.
I would love the fleet of GT2s.

Peter