SIDS N STARS,
Perhaps if you added the word completely when describing the different series of the same turboprop, then you might answer you own query. Just as a 717 and a 737 are both off the Boeing production line as twin jets does not mean you should be able to hop from one to the other williy nilly.
If you had read and taken any notice of the significant differences between these variants, you may have also have realized that generally with RPT the idea is to be endorsed and current on one type of aircraft above 5700 kg at a time.
That is the serious reply.
Hopefully, you were just sh#t stirring.