Affiliate Marketing Secrets

I enlisted in the Air Force last July and I’m currently finishing my senior year of high school before leaving for BMT in August. I got a 93 on the ASVAB and I chose command post as my job. I originally wanted air traffic control, however my uncorrected vision was not good enough. My plan is to get lasik to improve my uncorrected vision and hopefully cross train into ATC. My recruiter, who has been beyond helpful in this whole process, says that this shouldn’t be a problem, and the head Air Force lady at the MEPS seemed to think it was highly likely as well. Now that you know the situation, my questions are:
1. What are the chances that I am successful in cross training into ATC from CP?
2. Does anyone know anything about the command post job? I’ve heard mixed reviews and I’m looking for more.
3. I want to make a career out of the Air Force, but I’m undecided about an original four or six year enlistment. Any opinions on that?
4. The command post job comes with top secret security clearance, how valuable is this in the civilian job market?
My recruiter has answered these questions for me, however I’m just looking for a few more opinions on them. Any other information you think is important is also greatly appreciated. Thanks for the help!