i've been curious as well. i've got a P47 on E85, run the 32" BB pros on a comp cut #3 paddle. had 1650's on my x3 with a p43R turned up to 42 or so, and the blackbirds are quite a bit more fun. they definitely slide more where as the 1650's would just dead hook and pull the front end up. I think the diameter people are gravitating to being the 34's and 35's is somewhat riding location dependent. for a place like glamis where you're covering distances and the g-outs and whatnot are larger and you're willing to give up some acceleration, maybe they're ok.

i've been curious about the bigger rogues and how they drive vs say a blackbird, but none of the tire companies do demos where drivers can compare apples to apples to see what they like.

when i first got into SXS stuff, I had a set of the original sandcrafts before they went with the heavier ones they're doing now. didnt like them, fronts didnt turn in at all. then i tried some STU 1300's. much better. tried Skat mohawks, loved them. tried comp cut ss360. even better. now prodigee's. even better. have had 32 blackbirds, 32 bb pros, 1650's, etc. each tire is different, and it would be great for someone besides sandcraft to do demo days with as expensive as these tires are.

Original Sandcraft

STU Dessert master front, 1300rear

SKAT mohawk front, 32" bb rear

 

Your first X3 setup is exactly what my first was too. When I went to E85, I switched to BB #2 and Tribs in the front.