Decoding Hull ID model/serial number for Carolina Skiffs

[BamaRob33037]

Does anyone know how to decode the FIVE digits in the middle of the Hull ID or HIN on Caroilina Skiffs'? BTW...It is easy to decode the MIC Manufacturers ID code (first three letters) and the date/year produced (last four digits). It's the FIVE in the middle that can be very difficult to decode unless you have a list of which digit(s) represent. It's id different for each manufacture. Often there may be a difference in opinion, title or HIN as if it is an 180, 186 or 1900!!!