Optimum Flow Deck Surface

[PO1]

If you were to design the best possible surface and surface pattern for Flow deck operation, what would it be?

Very distinct pattern, 1cm grid pattern, 3 cm grid pattern, no grid, white pattern on black surface or vice versa, etc??

What would be the optimum height for the Crazyflie for flow deck operation

Any further tips for Flow deck tuning

Thanks

[droneguy]

I kid you not, this is by far THE best solution out there!
We have about 20 of these that we lay out on the floor before we fly.

https://www.ikea.com/us/en/catalog/products/30361910/