<R15> Can we modify the Gen 2 controller with VEX parts?
Controller modification with VEX IQ parts
No physical or electrical modifications are legal for the VEX IQ controller (e.g., drilling, gluing, dismantling, rewiring). An externally-attached piece (e.g., scuff controller or other piece that doesn't require alteration of the controller) would be allowed subject to Head Referee judgment and only if no other rules are violated.
If this does not answer your question, please feel free to rephrase and resubmit.