I have been ordering shaped Rigotti cane for the past 3 years. I use the Caleb -1 shape, and usually try to get the 10-10.5 diameter cane, but have also done the 10.5-11 size. This last batch sealed extremely well, no worries about leaking when tying.
Rigotti Shaped Oboe Cane
All Shaped Cane is hand shaped by Hodge Products, Inc. Sold by the piece.