Pilot side wing, andprepping elevator hinges
Cut the pilot side wing control surfaces out. On the horizontal stabiliser, about 6 layers of carbon biax added to reinforce hinge area (no pictures), and holes drilled/countersunk for elevator hinges

Cutting pilot side flap

cutting pilot side aileron

Hinge area trimmed and test fit for drilling

holes drilled and countersunk

test fit with screws
This post is from Darren and Lee's Whisper X350 Gen II