He basically told you what I did.
But used some impressive verbage to do it.
Unless you will be fishing VERY rough water all the time, stay with a modified V.
Deadrise is the angle between the waterline and your hull at the back of the boat.
A flat hull has zero degree deadrise.
A Deep V allows this V hull to go all the way back to the transom.
And if you looked at the transom it wouldn't be flat, but a V, in relation to the water line.
This V hull running the entire length allows the boat to rock from side to side.
Oftentimes, with a really deep V, it rocks violently.
This is called snap rocking.
Get a modified.