Can anyone help me out dating some of my Bear T/D limbs (all Grayling) and magnesium risers? As general and specific info is welcome. I've got a pretty wide variety on the limbs: red tips, white tips, factory camo white tips with green silk screening, serial numbers range from 4000s to 15000s, black glass on most but one #1 50# set with white glass and red silkscreening. Riser serial numbers vary too, but one A riser has chrome latches and black plastic bears on the back on the latch. Is it possible to get to a specific year with the above info?