[quote name='Lfalex v1.1' post='249366' date='Jul 28 2008, 09:14 AM'][i]Rumour[/i] has it that Warwick changed from the recessed Dunlop-compatible design to the exposed Schaller type due to instances of natural (ie requiring wax) finished basses shrinking due to moisture loss caused by infrequent (or non-existent) waxing.
The shrinkage caused cracks around the metal inserts, as these (obviously) don't shrink!
Another interpretation would be that Schaller straplocks are more widespread, and that compatible buttons are a lot cheaper to fit than the recessed ones...[/quote]
AFAIK the exposed Warwick straplocks are Dunlop compatible, not Schaller. Certainly those on my (recently sold) $$ were as are those on my thumb. I find Dunlop strap attachments will fit the Warwick lock, but Warwick strap attachments wont fit dunlop locks. The upstart of this is - if you have lots of basses, you can buy a set of dunlop straplocks for the strap attachments, then buy warwick straplocks for all your basses from the Warwick website shop, where they're about a third the price of Dunlops!!