I e-mailed Dan a few times and he replied very quickly. The last e-mail I sent him he never replied to. I'm not sure if RC parts are Dan's main business/job but I doubt it is. I can see how he could get a bit behind. He seems to be is a single man company and for that reason he is not always going to be able to answer e-mails and get everything done in a timely fashion. It seems to be a fairly common thing in the RC industry.