Yup.
Ed is a full time CPA he does have a real job. The TC stuff is a side line and is done mostly after hours on his full time job but he does at times during the day when he has time take and return phone calls about TCs too. How he manages to do all he does is a mystery to me. He also sets up at gunshows at least two if not three weekends per month on average I think. He is a busy man.
But in spite of it I can't recall an e-mail he failed to respond to within a few days and generally if I miss him by phone and leave a message he calls back same day or next at the latest. If I had as much going on as him I'd not do as well I'm sure.
Now if you're just asking generalized questions that would be better asked and answered here you probably are not going to get a reply from him as he really gets way too much of that and has not got the time for it. If you ask does he have in stock or can he get for you a specific item or in any other way make it clear you are in the market to buy I think you'll get a pretty quick response most of the time.
But he does have a life other than TCs and goes on vacations and such so he can't be there all the time. TCs are not a full time business for him.