AFB,
I think clay will be fine. It's all we have down here in GA. People grow figs like crazy around here in it, no problems.
Also, thank you for serving! Much of my family enlisted at some point, all Navy or USAF. Dad clocked 20 years in the Navy as an E6 (stayed low rank on purpose) before retiring back in 1990. After 20 years in, and now 20 years retired, we talked this last weekend and he says that, even after two tours in Vietnam, most of the changes he saw from the military were very positive, character-building things, and he's not the least bit screwed up from it all. Joining our armed forces is a pretty selfless thing to do, you'll meet some great people that can turn into bonds of friendship that last forever and are stronger than family. There will be the occasional time when you may be asked to do something you don't like - same as anything else in life? - I think that was the one thing that bothered my dad the most. Stay safe!