RallySnake,
Thanks for posting this. I'm always interested in hearing anything new on related sized H-rated 15" Tires for our Cobras. I spent several hours over a few months on the phone a while back with various Sales/Marketing teams at four major tire MFGs, just looking for future hope, and found nothing promising in the right sizes; and told it would not happen due to limited market demand for 15" H+ performance tires. So, IMO, until someone has actually purchased and tested the specfic tires you mention, I don't see how anyone here can really make a valued judgment on it yet.
Gee... nobody ever thought GoodYear Dirt Track tires would make there way on their Cobras either, but they have, and many people use them. Darn rock flingers too!
If anyone tests these Maxxis truck tires you mention, please report how it goes. Thanks.