IMO 2.5f/2.4r is probably the ideal set up for a bike with that much travel, but you can run up to 2.8 tires on the Bronson.
I know some people do, but I couldn't recommend the 2.6 Rekon as a front tire, just not enough traction for me. My 5010 came with 2.6 DHF/Rekon combo and that works pretty well. The Rekon definitely breaks loose a good bit, which is fine on the back, but wouldn't want that to happen up front.
The 5010 has a firmer suspension feel, so the extra volume tire works well to help smooth out the chatter, but they definitely feel more heavy/draggy pedaling, which I wouldn't want on the Bronson. YMMV