BG were stocked in March at 2-3" and are now the biggest are in the 4-5" range. I don't know for sure because I haven't sampled any. I have been just leaving them alone and letting them grow. The HSB were also stocked in March at 6-8" and are now in the 10-12" range.
I have definitely seen the quick flash of silver that you mentioned but it is almost too fast to see.
Oh yeah just wait... ha both your BG and HSB sounds will change over the next year. You will understand more what I am talking about once your BG hit about 9 inches and your HSB are 17 plus inches. It's crazy....
RC