I think it's a whole lot more likely than they only grew 1/2" in 14-15 months.
The original stockers could have easily grown from 2" to 6" last year - that's big enough for (some) to spawn this year. Awful good growth for the 2008 YOY. I'm not 100% convinced either way - maybe 90% a new spawn, 10% really crappy growth.
Last edited by Theo Gallus; 07/20/0809:21 PM. Reason: Hedging
"Live like you'll die tomorrow, but manage your grass like you'll live forever." -S. M. Stirling