Never used'em. What's the advantage?
We use Blazer 1.5", or the Bohning 1.75" X-vane. Remains to be seen how DW's A/C/C 2L-04's perform with either. Was gonna use micro-Blazers, but they aren't made any more.
I'd like to try some spin-wings, but I don't see how they'd pass through the rails of a NAP-3000 rest without contact.
So many fletches, so little time...