Riff I think you should watch your wording with newer members; using phrases like "it is highly recommended" surely leads some folks to believe that you're quoting a repair manual or other industry document, rather than just stating your opinion. I for one do appreciate the amount of input you provide on these wheel/tire threads, but that's just something I think you might consider.
The other reason I point that out is that 7" rims are NOT recommended by Bridgestone for their Dueller tires in the 285 section width. Their APT III tires have been superseded by the APT IV, but you can see from that spec sheet that they recommend 7.5" - 9" rims only. Will the 1/2" cause the tire to separate from the rim? Probably not, but when it comes from the manufacturer I think it bears mentioning to provide balance against glowing recommendations.
http://www.bridgestonetire.com/tires...roduct_ID=2022
Btw, this reminded me of something I read (I believe) in Sue's thread on the Coopers. General doesn't recommended 7" rims for their 285 section Grabber AT2 tires either - they actually recommend a minimum of 8".
http://www.generaltire.com/tires/Grabber-ATsup2-sup