In my experience, comparing fall of 2002 stocking of BG to a spring '03 stocking of HBG, by the spring of '06 the Male BG were 1" longer than HBG but the HBG were heavier. Sizes of both species were inconsistant somewhat unexpectedly with the HBG, their size varied from 7" to 10". In 2006 I would catch about 1 HBG to every 2 BG even though there were 10 times as many standards. This confimed others observations that HBG are more aggressive. I was using a very small trout hook so I don't think bait size was a factor. Last year I caught far more standard BG than HBG, more like 20:1, probably due to BG reproduction. I also caught 2 HBGxBG crosses confirming that HBG do interbreed with BG.
This F2 is likely no more than 3 years old and is about 6.5" long
