Dale wrote:
....snip...
Yes, but I see many posts where people refer to HD vs MD with no
discussion on what these are, which tells me that there are some
general
ideas about them. So what are the commonly agreed upon numbers for
our
current fashion?

I think I disagree about there being generally accepted ideas about
this; but here's my $.02, FWIW.
Heavy = D/L ratio over 275
Medium = 225-275

YMMV,

Frank