I just lost some of my electronics (among other things) during this past hurricane. I currently have an Apex Jr and was considering purchasing a VDM but I think I will upgrade to an Apex and be done with it. I have a new EB-8 and don't really need the display. I read that the display was needed to program the firmware on the Vortech Pumps. Is this still so or are there any limitations in programming ability without the display? I am looking at buying just the base module to use with the other hardware I have. I do not plan to use Vortech pumps but if I would want to would I then also have to purchase the display module for the firmware upgrade?