New Skin for the 240

[strangeboy]

Advertisement (gone after registration)

I've purchased the Camel skin from Aki-Asahi, and I'm thinking of doing the deed myself.
I'd love to hear from anyone whose actually done the work, because I have a question:
There's a clip on YouTube (Japanese w/subtitles) in which the guy removes the outer ring of the lens mount first (about 6:42 in the clip).
I'd never seen that and I'm wondering if it's a necessary step.

Thanx in advance!