20 knots wind against the current can make it a bit rough.

I personally saw it once rather benign and the NOAA forecast for just 48 hours
later turned out to be 50 foot waves (that is right, *50* foot waves).

It is not impossible by any means, but one does need to pay attention what's
likely to happen in the next day or two.

I have long wondered why some people appear to fear the Gulf Stream
and build such large myths and worse about crosssing it.

I have crossed the Stream, from north of Ft. Lauderdale, to the Banks
south of St. Isaacs Light on the way to Abacos and south, to Exumas,
Long Islaand and even further south, and north, to extreme NE Bahamas,
more than 30 times, all without incident or concern.

If you have a reasonably well founded boat with good navigation gear
and good charts, wait for weather window and then "Go," keeping a
sharp lookout for other boats and ships. (Ships travel near western
wall when headed south and near the eastern wall when headed north.)
Devils and other boat-eating monsters do not dwell in the Gulf Stream.

Gulf Stream is like any other waters with a moderately fluctuating
intensity of current. Be assured that if you are on a boat that is, in
all resoects, up to date, you will even enjoy the passage. And when
you first spot a Bahamian land mass on the distant horizon, you will
be pleased with yourself and your boat.