Methinks it will depend on the size of the fin when it comes to heaving to. The other factor I suspect would be the hull shape forward. Raven has what would be considered today to be a fairly sizeable fin and is not as flat forward as many more modern designs. She heaves to quite happily although I've never had to try it in heavy (say, over 30 knts) weather, only practice runs in medium conditions.
"Do you think God gets stoned? I think so... Look at the platypus." Robin Williams.