iNViSiBiLiTi@tokyocoffeenerd tried a few different sizes and none felt as right as the1.5mm.
We will keep prototyping on our end so we can come up with more for season 2!
YanboWu1.5mm thick! 4.5mm prototype cost was way more and honestly about the same as the 1.5mm. Took both to the NorCal meetup and most people didn't find it very special.
1.5mm integrated makes it pretty stiff, so don't think the 4.5mm was able to add much more vs what you'd get on polycarb or acryl.