This is a little project in the works. When I say little it is about 6 hours of work so far.
I kind of want to do the same thing for shells and the difference between single ply, 3 ply etc.. maybe later this month.
Well, the hoop article is missing some info and as I find it I will update the article. As always I'm open for input and date clarification. Remember this is for the person that has no idea what a hoop is and hopefully also give a little info to the vintage guru.
Thanks
David