Birdseye and Semi-Transparent Maps

[Seldom]

Has anyone tried using Birdseye on an OR or DK with a semi-transparent map?  It seems that BaseCamp ignores the Transparent=S option  and it has something to do with Birdseye.

See:
https://forums.garmin.com/showthread.php?t=8404

If the problem is restricted to BaseCamp, it should be easy to live with.  If it also applies on the GPSr, then cpreview won't work and it might be a reason to revert to a really old cgpsmapper compiler of the sort that accepts (IIRC) the "pvx" switch.