Armyrob:
1.) I was a reservist called up to AD. I don't remember exactly, but Title 10 sounds right.
2.) I, knowingly, never made any decision on my GI bennies. I went to my school's VA rep and they did all the paperwork and also said I didn't have a kicker. According to the VA ED rep I was put under Post 9/11 - no kicker.
3.) No, only Post 9/11.
4.) I was never explained the difference between CH1606 or CH1607. The school's VA rep just said, "sign here." Mistakenly thinking, they know what there doing. As the VA rep explained it I was "under chapter 1607 and relinquished CH 1606".
If you really need specifics, leave me a list of questions to ask the VA ED rep and I'll give them a call and then post the info.
Thanks for helping!