MKfcdl...no changes to the Explorer charts for the route. Last went through about 10 months ago via memory rock. I did think that it was more shoal around Mangrove than in the past (7ft.). I'd give it just a bit more northerly routing to be safe. Other friends went through Indian Cay...still missing markers but the ay points are good and the shoals/depths are still the same. Advice remains to take it on a 1/2 tide rising. Memory Rock is SOOO much safer and easier IMHO. Huge new casino/development going in near Old Bahama Bay...and the gnats are as bad as ever! You can probably hook up on line with someone who has just done the trip on the Abaco BB... try the link at www.cocotels.net
On the Gun Cay route...my experience is dated, so don't wish to comment as things may have changed. You might want to ask the question on SSCA or CruisersForum where some may have more recent experience. Lots of folks will be heading back that way in a month or so!