I have a Hewland Mk9 which needs a replacement main case. From what I understand, new VW-type cases are only available as 4-bolt pinion bearing versions (standard and Rhino). The Mk9 I have has the later, locking-ring bearing, however.
The alternative is Hewland's HC-201. I'm not familiar with it so would welcome any comments or observations about it.
Thanks in advance!