Hi everybody I just found this forum and would like to share this on going project of mine . I built my own DPV about fifteen years ago and was improving the design this year . I knew it was bullet proof but not very pretty . I was not diving for ten years and now comparing the new design of the DPV 's to mine it has some special advantages . I was looking to use a 2500 + KW battery module and a custom variable speed controller . I have been making a fundamental hull design change for a maximum thrust of 100 to 150 pounds and two divers . I will post some pictures soon and your input is welcome . regards Charles