I'd be tempted to keep my trusty VIIB

they're cracking boats, and from reading the specs of the VIIB and VIIC....there's little to no noticeable difference in the specs in the manual.
I'd stick with the VIIB, unless you plan on going for some long range patrols to the East coast of America or the Carribean....hmmmm, wonder if the VIIB could sail that far out from a port in France if your careful with your fuel :hmm: