Greg- From the limited knowledge I have on the subject I think you're a bit high in both cases. The first jaw I'd guess at 4.5-5.5. The second I guess at 5.5-6.5. Definately not enough tooth wear for 8.5.
Here's a couple links that may help. Keep in mind that soil types and food sources from different regions will affect tooth wear, but these are pretty accurate. I'd have your local wildlife biologist take a look.

http://www.tpwd.state.tx.us/publications/pwdpubs/media/pwd_bk_w7000_0755.pdf

http://www.npwrc.usgs.gov/resource/mammals/deerteth/ages.htm

http://www.whitetails.com/deer_info/age_determination.cfm

*edit- after looking a bit more carefully at your pics, I adjusted my guestimates