I wish we could add another weather pattern, can't. Yes, you can increase waves, but it can be a pain using TC, because you constantly submerged and surface every few seconds. Large waves will also destroy ships in dock, not a major issue.
I've played with different patterns in the past. SS can make waves look a tad funny, but you don't notice it really in game when movement is fluid.
I recall I was trying to get green highlights in the water here, tad larger waves, but very choppy.
Here I recall trying to make more random large waves that had some roll. The cap was a little blockly, but again, you don't really notice it in game.
These I got a more narrow cap with a nicer foam cap, but not really rougher than waves in most env mods.
The ones I posted before were more large rolling swells. Basically impossible to use scope submerged.