Thank you, I've been analyzing tire setups people have posted to get the "formula". This helps much.
I'm very new to my bike, I haven't had much trail time- maybe two dozen rides? And yes, I'm on a hardtail.
What I've Used and Learned
I've only used my 2.25 Rocket Ron's, I really do like them: climbing, resistance, braking, wear... But I have noticed a few times the front slipping out on turns. That may be my mistake, as I have not found the right pressure yet, nor am I running tubeless. And I'm bad on "trail flow" I hit all the roots, but am still able to keep up with the "team racer" guys.
What I Need
That being said anything to improve my confidence in corners, maintain my speed, and eat roots is what I'm looking for. (Specifications)
What I Have
I ended up buying a WTB Bronson 2.2 Race, got it for $25, so no complaint. I will be using that front. From what I read, I should have no issue cornering, but it does not seem as fast as the RoRo.
What I Want
I was hoping to pick up some speed and save some weight in the rear, all to my previous specifications.
And to answer your question, I cannot speak of what volume I want. I've only tried one tire. What are recommendations for rear? Is it important that the rear preform well over roots? Or is it a climbing and speed tire?