Three of my bikes have Compe-V fronts, here is the rear derailleurs they are paired with:

1972 Fuji Finest - Suntour V
1973 Fuji Special Road Racer - Suntour V luxe Gt
1981 Fuji Gran Toure - Suntour Vx

It would appear to me that the Compe V is not a group, just a component that was paired w/other V* rear derailleurs. There was a front Vx derailleur, though.

The Compe V on the 1972 Fuji Finest has a cage that appears to be galvanized, or some other treatment, rather than chromed like on the other two.

I like the hi-normal, really, after you ride around on it a while, it really makes a lot of sense, since the spring force of the derailleur is used when typically shifting under less load (upshifting) and manual force is used when you may be under load (down shifting), one can apply extra force.