My prefrence is for the SEEP motors, have under mounted them and wired them up with an inline CDU with push to make buttons on a mimik board, so far all worked when tested
Is the 'days of old' when first started gettin into electrics, Andii and me used the old point side-mounted Hornby motors (both versions, metal and plastic) and they worked fine, just looked wrong having a box next to the track
Like all things in this hobby, its just a matter of preferance & personnel chioce. As is so often said, It would be a dull world if we all liked the same!
Brian