Me too........ It is taking way longer than I expected to get through making (having made) and testing the step-up units. I will follow up to see if the winder will have the latest rev of samples soon. I am determined that when I resume shipping the MU it will be at least as good as an overall step-up system as the prior unit was. I could have just grabbed an alternate transformer right away and continued shipping but that would not have been right. Once I come up with the transformer (or transformers) that will be used it'll be shipping again - all other parts are stock. Believe me with the huge inventory of associated parts here I'd love to be shipping them now!