Please elaborate on why you think it would be a “HUGE mistake to convert”?
It would mean the loss of a sense of personal ownership? Worse 7-11 month experience? Loss of overall value?
As a hypothetical, imagine that the existing DVC system converted to a trust system suddenly. Only using this as an example because of how familiar it is, I'm in no way suggesting this will happen.
A Trust system would result in many hard-to-book-at-11m rooms becoming
extremely-hard-to-book-at-11m rooms (BWV SV Studios, RIV SV Studios, CCV Studios, CCV/BRV around Christmas, AKV Value/Club, VGF Deluxe Studios, etc.). Same finite number of rooms, but likely way more demand for the already-favored rooms.
Imagine you could book at any resort at 11m, even ones you don't own, which rooms would you book that you'd never be able to normally get at 7m? Now imagine how many other people think similarly
VGC would go from usually-casual between 11-7m to crazy at 11m almost every day.
On balance, this would mean other categories would get easier to book, but they'd be the ones that already on the easy side to book, so somewhat moot.
There would also be a 'mixing' of dues, so if you owned at resorts that are low dues, you likely end up paying more.
There is some upside for resorts like AUL, where dues are high and travel cadence may not justify ownership for many, AUL-via-Trust could be more attractive than OG-AUL ownership.
But the more I noodle on it, the more concerned I grow about a Trust system for my needs.