MR Ralph

Does anyone here know anything about the pro II CTB series. I just bought one that looks like new. I was told the CTB series was made for only 2 years like 88 and 89 in Japan. This Bass has no markings on it. Love the neck and weight and I am trying to decide if I want to upgrade the electrics and turn it into a fretless or let someone else enjoy her and look for another project.