Well, you can't beat free that's for sure!!! But, if you join the DRV Owners Group FB page, we have a lot of 2 axle DRVs on Continental LR J HTL2s and so far, 0 failures. They are a robust tire that has stood up to everthing our group has thrown at it. They are not always easy to come by however.
I do understand they are so far a proven tire but I really want to keep my money here if possible.