Best bits on Oramask

Hi everyone
Are down cut bits best for using Oramask projects ? I tried a v bit and it made a mess of the Oramask pulled parts it up. I had the Oramask on very well for the acrylic I cleaned it with rubbing alcohol and for the wood I shellac the wood 2 coats. I found my down cut bits did the best job but was hoping on using v bits.

I have no direct experience with it, but Cadence Manufacturing has a V-bit for this.

Hamilton Dilbeck (member here) did a video on it. This V-Bit Is One Of A Kind - YouTube

edit: there’s a 90 and a 60 degree model.

Thanks for the info !!