Hi!
You can contact an ALO at any time with any question. As for your application, while most ALO's will be very open with helping you (I don't know any that won't, actually) they really can't do much but answer questions this early out.
BUT...if you can do the following:
a. Put together a basic "resume" of EVERYTHING you have done in/out of school, in the community, sports, etc...etc...etc...since the first day of 9th grade
b. Think of any questions you might have for him/her
c. Put together your letters for your MOC and both senators
d. Make certain PSAT/PLAN/ACT/SAT scores are sent to USAFA, and have them to tell your ALO
e. Find out how good your physical condition is: take the CFA just for yourself to see how you'd do...and know if the ALO asks
If you do all this...your ALO will love it; they'll know you are SERIOUS and they'll respond accordingly!!
Besides...you'll need ALL of this when you apply, so getting an early start on it is nice!
Steve
USAFA ALO
USAFA '83