After take the 2nd episode with Yuki, We tried a BOOST friction test on the grass.
The test is simple – lift the hold off the grass!
The hold used is Cheos Hold Eos ( http://pump.ocnk.net/product/7621 ) and Wahaaah ! Dual texture Emanuela ( http://aixhold.ocnk.net/product/454 ) was used.
Test Scene.