should be fine.
severne has the same pulley set up as chinook.
if i remember correctly.

I have rigged blades on chinook ext. works ok, have since bought a severne wave grenade ext. They are better to rig on the severne ext.

Not chinook but I'm using np carbon extensions with Severne masts and sails... No problem.

maxa said..
I have rigged blades on chinook ext. works ok, have since bought a severne wave grenade ext. They are better to rig on the severne ext.

Considering almost every extension has the same orientation of pulleys.............. how is rigging a Blade in a Severne extension better than a Chinook extension...?FFS they have the pulleys in then same plane.

I had a Code red with 4 pulleys and only two on the NP extension, which meant that I couldn't use all of the pulleys on the sail. I bought a new extension with three pulleys to make rigging easier.

Thanks for all the feedback. I will try rigging on Chinook and see how things go. At least extensions are more compatible than masts

I have been using severne sails for years with skinny chinook extensions.
Works fine, only difference that Ben S pointed out to me a few years ago was the luff ext number on the sail is pretty close for severne ext but not correct for chinook as the collar to roller spacing is different(space from collar to roller from bottom hole is bigger on chinook if that makes sense ) so the sail is closer to the board on the severne ext.
That was a few years ago but still the same I think.