That info is gold Rob! All the gold I've dug out of your posts over the years is invaluable, and I thank you for that!
I went with a seven spring LML clutch with the 23tooth DRT in the VNB2 rebuild. I did need a clutch cover spacer as well as a bit of grinding on the cover, and engine tab, to get it all to play nice.
Mattgyver talked me through it and I'm glad I went this way. I'm not particularly hard on clutches, but this engine (Pinasco 177 2 Port with 24/24 and road 2 pipe) is a torquey beast!