Well, Ed, I know it's been a while, but I can answer at least one of your questions. I just took delivery of a WMJ 11S and it fits well enough in a dreadnought style case. It is a bit sloppy around the upper bout, where the dread is larger, but the lower bout fits the standard Washburn blow-molded case for my WD32SW just fine. I'll be using my blow-molded Washburn dread size hard-shell case for my WMJ 11S.
The WMJ 11S does NOT fit into a classical guitar case. The problem is not overall length, it is the width of the lower bout....probably 2 wider than a standard classical guitar.
I'm not sure if there's some change going on in the WMJ line-up or not....I can't seem to find the WMJ 11S in the current product line, but there is now a WMJ 11SCE model that wasn't there when I ordered my WMJ.
BTW, I am quite impressed with the build quality of the WMJ I got....with the exception of the use or ivoriod rather than natural woods for the bindings, I would say the build quality is on par with my D61SW, a Yamaki built Washburn. That's pretty good company!
YerDugliness, Esq./Post No Bills
Guitar Playin' FOOL, retired & attempting to age disgracefully!!
Washburns: WD32SW, D61SW, and C124SW
Other fine acoustic guitars by Breedlove (custom shop Revival Series 000), Darren Hippner (#506), Takamini (2005 LTD), Epiphone (Masterbilt AJ500RC), and Yamaha (G231-II)