Hi Gumby,
I own two Weston meters and a Sixtar, but I don't use neither of them. I alternate between two digital Sekonics.
I forgot to say on behalf of Gossen that their convex small dome is much more practical than the monster size invercome of the Westons.
Your are also right in that the Gossen line of accesories may be appealing, specially the small spot like one I always found something very nice to have, but just never happened to come across one, just by chance.
Now, one thing I would like to forward for consideration: should be a contradiction between bringing a lot of info and doing it in the most simplistic way ?
Cheers,
Ruben