Of course the "experts" would say not to use stock wheels with radials-how else can they sell you a new set of wheels to go with your new tires? after all,you only spend about 3 or 4 hundred bucks for tires,why not throw down another 3 hundred for wheels?
I'm no tire expert,but I did train installers for the Sears Auto Center I worked for,and I've run my 16" (I've used both 215's and 235's,depending on what I was hauling or towing)radials since I got my GMC in '88 with no problems.
As you say,Cosmo,I guess real life experience doesn't count for much anymore.
True-the older wheels don't have the safety bead to keep the beads seated if you blow a tire,but if you take reasonably good care of your tires and don't try to jump curbs at highway speeds,you'll probably never have a blowout. If you do,it won't be any worse than if it happened with a bias ply tire with a tube. It's your choice what tires you run with what wheels. Go with what you feel good about.
Speed


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck