I think your growth being above what TWPD reports is because its a new pond with lots of minnow sized forage. New ponds grow lots of small forage. 6" and 10" to 12" is usually what I see here for Fall lengths in the late September time frame for the 0 and 1 year olds. In a new pond with minnows I would expect something very similar to what you are seeing.
High BG standing weights in water at carrying capacity compete with LMB YOY for the same forage. This delays growth.
It isn't what we don't know that gives us trouble, it's what we know that ain't so - Will Rogers
