@Gordon Nichols wrote- "While they certainly weigh more, they work with the triangulated diagonal arm to keep the rear wheels so true and corner so much better"
You can believe anything you want, Gordon, and if running the dual plate spring plates makes you happy, go for it. I understand you may believe it, but you're putting out what's purely your opinion as fact when you have no information to support it. While I admit that most of what I know about this is anecdotal and/or 2nd hand, I have done the reading and asked the questions and I do have some first hand experience as well. I did some parking lot slaloming (autocross) way back in my early 20's and the single vs double sp was a topic amongst the VW guys even then (didn't think much of it at the time as my '72 bug was a Canadian Standard with swingaxle), with no clear winner on either side (driver skill really seemed to be the bigger factor). Yesterday morning I searched the Samba forums for "broken spring plate", "bent spring plate" and even just "spring plate", didn't find 1 instance of anyone talking about this and even searched the gallery using those search words. You'd think that if someone had folded a spring plate there'd be a pic, but I looked through page after page (and there were a lot of them!) and not 1 hit.
Sooo,,,, I hope you can see where I'm coming from.
If not
In the present circumstances you can't take too many chances...
