...I have had big boats & dealt with diesels,leaking stuffing boxes,bad shafts & I could go on!I won't own anything but an outboard,they have come along way & people are realizing how economical they are to run.Time will tell how well the boat will go & if we made a mistake with the keel but missing the last 2 lobster seasons if she only goes 5 kts. I am going fishing!I am launching in April & I will let you know how the boat goes.
For what its worth, I owned a Parker 2530 that was originally designed for I/O power. Mine had twin Outboards. While it was fast and looked great with the outboards on it I could never get it to run right in the slop and it always let me down in rough water, usually coming home.
That is ultimately why I sold the boat.
The Parker didn't have a keel, but I suspect the same kind of thing going on here.