los: given that all R9s are within +2 years old, they all are quite young. And I bet that most of them are shot very little. I wouldn't worry about the trade based on age. However, there were some minor color changes along the way:
1. Farmingdale, blue CF grips, light-gray frame
2. Farmingdale, blue CF grips, dark-gray frame
3. Farmingdale, gray CF grips, dark-gray frame
4. DeerPark, gray CF grips, dark-gray frame
5. DeerPark, black CF grips, dark-gray frame
6. DeerPark, black CF grips, very_dark_gray frame
7. DeerPark, G10 grips, new black-coated frame (coming?)
Would someone please correct me if I am wrong! :-) Thanks!