Great minds are thinking alike. I just answered a PM from "jason" about when GSL BS start showing up. The typical season is May through October. The early hatches don't result in a huge population but by June there are times when we can find BS pretty dense so it's easy to get plenty.
Here is a link to some good info and pics of GSL BS:
http://utahreefs.com/forum/forum_posts.asp?TID=65968Don't these look delicious?
Aloha
Edited by Mark Peterson - April 11 2014 at 9:58pm