Pace, I will have to disagree with you about BAH being full strength. Chris Brown (fireman) and Demetrius Pinder were not in the squad. To put things in perspective, both have run sub 45 for the season.
However, this result is very significant. If you checked a previous post by myself, there are about 8-10 teams that have a realistic chance of winning a medal. I think this is one of the events where its pretty even.
BAH
JAM
USA
SA (do not sleep on this team, they will be firing on all cylinders)
TRI
AUS
UK
RUS
BEL (they have actually outperformed T&T in the past 3 years)
Here are some teams that can squeeze into the final if one of the above slip up:
BEL
JAP
GER
NIG
FRA
The following teams can do the same, but need to qualify first:
PR
GRN (will like to see them in a World Champs)
Look out for DL. He is only 18 and is running 46s consistently. DL is No KJ, but he is making excellent progression yearly.