If you look at how easy trials motos are on trails the answer may be no Mark. Improved grip means less sliding as well.
Had my second ride on these yesterday and I’ve been blown away. I think there is a lot more going on than the Tannus PR indicates. It seems the insert acts like suspension and when there is an impact to the tire it increases pressure so air that is within the insert stays put until it is slowly released by the 4 slits. It acts a little like Procore st first and it allows outrageously low pressures to provide ample support.
I’ll have to check but I think I was under 14 psi front and rear on a top to bottom that included TNT and Cambodia yesterday. Sidewall support and grip are ridiculous. And this was with DHR2s with exo casings.
All this for 160 grams. I was on Rimpacts before this and they are very good aside from the sidewall support, but they don’t come close to the new Tannus.