I run Mitas C18 green stripe with T-lock* and 7 psi at the rear. Works very well for me (old & slow), but my much faster friend had problems with torn sidetall when riding fast thru the rocks.
*T-lock is a Swedish competitor of Tubliss.
I Have just ordered Tubliss for the front, going to try it with Mitas C19 green stripe.
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