my experience....

355mm Schneider G Claron - have used this on 7x17 and 12x20
305mm Konica GRII - have used this on 7x17
14" Kodak Commercial Ektar - have used this on 7x17
10" Kodak Wide Field Ektar - have used this on 7x17
19" Red Dot Artar - have used this on 12x20
450mm Fuji C - have used this on 12x20