Northwind, I’m with you on HR’s they just don’t deliver they’re promise & reputation.
Just building a SC 29er my first foray into wagon wheels & went for a WTB Vigilante up front, Only because i had good results on 650B & similarly a rock razor rear, that said there’s no stock of Trailstar non gravity left anywhere & pacestar can be a bit sketchy.
Might be too light for the rear in the peaks but a Gravity version would be fine if your ok with the weight, I did the Ard rock with one on the rear & it was fine.
I’ll be interested in how you get on as I’m a 29er novice & keen to get to grips with the tyre set up.