Not the new MA twins class lol. A 700cc Hawk gets bumped to V6MW. If it was 650cc than V6LW. And then you can bump to V6HW too and even V7MW.
It can't go in V7. Exclusions: No machine eligible for D Superbike, 125GP, or Clubman classes will be allowed to bump-up to V 7.
I would look at that one on a bike by bike or rider by rider basis. The issue when it was written was I believe a concern over speed differences with the bikes in classes V7 gets run with.