I have done many many deals with TX_Aggie.
He doesnt ship instantly, sometimes he does. Sometimes he leaves shipping to a friend or room mate that flake out, and then he ships it a week or two later.
So he isnt consistently super fast. He has been good to me in our trades though and I do believe he is simply a busy student.
So work with him and he will come through. Dont pounce on him like a criminal after a few days of not hearing from him.
"I'll see it when I believe it"