I've seen this same discussion before, and there will always be a difference of opinion, but I do think that what I did with my Ultimate and Edge (60 size planes with Webra 120s) were Lomcevaks. Last time, someone referred to a different maneuver name of "cauldrun". I do not remember what the difference was, but it was a variant of a Lomcevak, that was of a more extreme nature.

I gave the commands that DP said to, and my plane did what he described in the book. If it's not a Lomcevak, them I too am at a loss regarding a name other than just calling it a tumble. Any violent spin or snap probably could be called a tumble, I guess

I guess that all Lomcevaks are tumbles, but not all tumbles are necessarily Lomcevaks.

I'm not trying to give JW any crap, just posting a difference of opinion and giving reference to the information that lead me to it.

Maybe at your field, you could call it a "Nedcevak"?