Here's a few youtube vids of a Kostal OM:
http://www.youtube.com/watch?v=vGei5o3sbOY
http://www.youtube.com/watch?v=GhK08M0B4r4
http://www.youtube.com/watch?v=57F3J...wL6P521ro8BwMa
http://www.youtube.com/watch?v=EP_YR...6ZFUU03AzTNiJ- (no playing of the guitar on this one)
Not heard/seen any jumbos yet.
Breaking news ... I'll be selling a fair few guitars to help fund ... a Kostal Mod-D. (Cutaway, wedge, probably figured claro walnut/German spruce, custom nut/string spacing). Can't wait. Will of course keep you all posted, though the bulid's not due to start for quite some time.