Crocodile
G.O.A.T.
While I can't comment on the VFeel or V Sense versions of the 7, the SG and Organix 7 295g ( lime green) are very powerful frames. They have a 104 head and very thick beam and 74-73 RA.Also interested in this..
But can't suffer any loss in arm comfort.
The 6 is a much lighter frame around 275g and 100sq inch and the current V Feel has an RA of around 70, but I would say it's more of a frame for an intermediate junior or petite women. It won't be as powerful as the 7 but it's very easy to use.
As for arm safety I wouldn't use any of these. The problem with the current extremes is the SW and balance is very head heavy and that's going to affect your arm.
The SG 7 plays comfortable with groundstrokes but once you start serving with it your arm will feel it.
If you want arm comfort but still retain some power then my pick with Volkl would either be the Organix V1 Pro or SG variant, a current model V1 Classic, with weight added or even try the V feel 4 which is very comfortable for its stiffness and mass.