Interesting. Mine supposedly had a build 15K prior to purchase. Pulling covers off etc gaskets etc can be seen to have been replaced and sealant etc looks newish. I would believe regardless of the build status that it copped a hard life prior to me buying it. I will do more investigating. Apart from top end power the midrange appears much nicer over the B18B.

If it was due for work I'll have to find a Brissy repaired I'd be keen with.