Castle builds their speedo in house and it isn't made in some foreign country. It takes time to get them together. The first batch at 4000 plus units Castle thought would be enough but they sold so fast and the fact they had other speedos for planes to be built and a few other products so it has taken time to get more made.
Are shop currently has 6 MMP speedos in stock. We had 12 last week but sold 1/2 of them.