Not sure if anything ever came of this. I have a set of the ZF1s 17x9 (to match my goofy setup) on order, and will be giving them a try on track this season. Guess we will see how they hold up.
3/21/25 Edit - got word from the vendor that there is currently no stock and no ETA from the manufacturer, could be 2 weeks or 6 months, so these could take a while. I'll update when I have more information.
3/31/25 Edit - ETA from manufacturer for ZF1s is ~12 weeks. However, ZF8s are in stock (basically same wheel with slightly different spoke design), so I may pivot to those.
4/2/25 Edit - Confirmed with wheel supplier swapping to the ZF8s in the same specs (price is even the same), they are in stock so I should have them in about 2 weeks.