Singlefin soul surfing vs. Trifin wing-wang surfing. Who knew?

Well, it seems, there is much to learn about longboard design, even for a not-that-old dog.
A handful of weeks back I bought a new-to-me longboard; 9'1"x23", tri-fin.  And I've done some noseriding, but I've plateaued out. As I go towards the nose the board becomes really unstable sometimes tossing me and off with an inglorious splat!  I don't understand it, it's no good for my little ego, the fun-element or my future noseriding.
So ... I turned to Dr Google. There I discovered two things; tri fins and wider boards are not good for noseriding. Well, this was a slap in the side of the head! Wide board is stable yeh? Well, yes and no. They're stable in smooth (mornings or winter offshore conditions), but actually become very unstable in choppy or bumpy conditions like summer aftwrnoons amd beachbreaks. Which exactly describes the waves I've been having lately. Lesson learned!
Then the fin thing. Ok three fins, you'd be right to think they have a total area way above a single fin. So, should be directionally stable? BUT, what happpens when you g  on the nose is that the fins rise up out of the water or close to it, and bingo! You suddenly become a free agent. A tall single fin, when noseriding, maintains traction. There were lots of other stuff in favour of singlefins that I wish I'd read before.
To quote:-
"There are many surfers around who would contend that a single-fin longboard is the only true longboard, as they foster a cleaner, more glide-oriented style of riding than do the maneuver-oriented multi-fin longboards.
The single-fin longboard seems best suited to those who want to trim, glide and perform sweeping turns that the stable yet pivotal feel of the single fin allows. If you enjoy the friskier, "oomph" surfing, or as the locals call it here in Hawaii, "wing-wang" surfing, go for a multi-fin longboard ..."

I hate "wing-wang" surfing but it seems that my wide trifin is a wingwanger rather than a noserider! Dang!