Feel I must interject here.
rslifkin depicts similar to my experiences. I have more than once experienced gnarly following sea conditions in a custom design, 1950, 38', semi planing hull, raised deck, sedan sport fisher wooden boat [14 ton weight]. WOT was 16 knots. Throttle up to climb, throttle a bit down to crest rather slowly over the top and then throttle even lower to ride down to the valley. Repeat, Repeat, Repeat. The available speed of the boat made it so that is essence: Following sea becomes submissive and the boat becomes dominant. Pilot's good handling of throttle and helm makes gaining control positions over the following sea conditions relatively easy to accomplish.
Then again... here's video of two heavy duty yet too slow displacement hull boats in nasty, confused sea conditions. I would not like to be in those seas. However, I believe a really good, heavy duty, well powered semi planing or full planing hull could be piloted to better negotiate those seas. Albeit it, any boat in that group of conflicting current and sea swells with wind whipped breakers atop had better have really well placed, low positioned and heavy weight COG ballast of one sort or another.
Man - I just watched that again. Bad Assss shat!