Well I Toona fish off Cape Ann, MA out to 20+ miles and I to have a mod-v hull. I have said it MANY times on here ... when it is too rough to SAFELY stand aboard my cockpit deck to fish ... We ALL turn around and head to the barn ... mod-V or deep-V.
The only difference is they get out there faster and home faster.
If I had my druthers, a deep-V with 2 smaller OBs would be the way to go. FYI, my bro runs a deep-V (22-degree?) GW 23 WA w/ twin 150s, turns screws for almost 50 WOT and yet his fuel burn ain't more, if anything when I had a single 225.
IMHO most w/ twin motors run too much HP ... but I'm admittedly 'old school' ...