I finally decided to buy a Waltz mount for my radar and it seems the
company, Performance Marine Tech/Manta, has gone bust.
Performance Yacht Systems (Pyacht.com), West Marine and Cyber-Marine all
told me they have no stock and either have not been able to contact the
manufacturer or believe the units are no longer being produced.
Cyber-Marine had heard there was a design flaw with the new style Manta RLS
which basically put the company out of business.
Now I'll have to buy a Questus, $ouch$.