Agree with Mark that some of this might be coming from the old Swamper stories around the 6 ply vs the newer 10 ply sidewalls. I know the stories of blowouts with the older Swampers where all over the place at one time. Most of the recent reviews I have seen have been positive other than wear, but for me this is almost a given in an off-roading tire.
In the end this is one just one of those topics that you will find folks on all sides with good and bad...
2001 H1 Opentop
Former 03 H2 Adventure Series
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http://www.hummerh1.net