I've got them on Big Ugly on the stock rims.
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They do flat spot but a little trick I use is when I start the truck to immediately roll it forward half a quarter turn or so. Seems to help "round out" the flat spots. I forgot once and man, they shook like a mofo...but then again the "balancing job" on these is pretty crappy...
I personally think the reasons these have a bad reputation are that people compare them to modern tires and purpose made offroad tires and also HMMWV related myths. These are a nearly 30 year old design and also were made with the intention of being used under a HMMWV EVERYWHERE. They weren't meant to conquer mud bogs or rock crawl, just be good all-around tires for use under a High Mobility Multipurpose Wheeled Vehicle in many conditions.
Also consider that HMMWV's are underpowered and HEFTY before you uparmor them. I've used these in sand and mucky stuff with HMMWV's and not been impressed...but then on a rocky, loose soil, dry hill climb they kicked butt. So when some GI comes home and says they suck people think they do because the majority of the talk about them comes from the military... Put the same tires under something with some better power and lighter weight and they aren't so bad.
I'm also told some siping and grooving makes the tread much more effective offroad. I happen to have a siping/grooving knife and one of these days winter is finally going to arrive...
Also don't confuse the 36x12.5-16.5 Wrangler RT/II bias plies with the 37x12.5R16.5 Wrangler MT's. Those are the ones with the chevron type tread...they're sidewalls are infamously thin (I happen to know of a set that was rubbed through when another HMMWV rubbed tires with it) and seem to be much more road oriented. I'd buy another set of these RT/II's in a minute but I'd avoid the MT's like the plague.
