Thanks for the input, GM DOC.
I've never run radials before (until now with the stock Rincon radials) but I must admit that they are extremely smooth, especially at speed. And yes, they are 3 ply stockers. The thing I like the most is if you let your bike set for a week, there are no flat spots in the tires like the bias-ply tires I am used to. You don't have to drive 10 miles to get them round again.
I think I just got into some metal somewhere on the trail, because none of the 5 other guys got a single puncture, where I now have 8 plugs in a set of tires with just over 200 miles on them. I don't think Honda would put a set of crap tires on their flagship utility quad.
I'm still putting my pennies together while I narrow my choices down, but I'm leaning pretty hard to the Bighorns. I like all types of riding, and it's hard to find a tire that does everything the best. I always go straight to the mudholes, so I want a deep lug, but I also like flying on the smooth trails and I know a radial shines there. If the Bighorns had a slightly more agressive tread, it would be a slam dunk for me.
The plugs are holding up just fine until I figure it out. I have a 30 pack of plugs, so now I am going to buy a 12vdc compressor to take on the trails just in case.