My understanding (and I may be wrong) is that every boat needs to be tested and with specific motors and transmissions. The 190 and 197 at the very least differ in weight. Also if a boat is tested one year and there are absolutely zero changes, then it is good for one more year. Again that is only my understanding from memory without searching so I may stand corrected. So if MC has a 190 certified with the MCX in '08, it isn't certified with the RTP.
It may be that with no changes, the open bow SN carries over. Or I may be way off base....
40th Anniversaary X14
'97 Prostar 190 - LT-1 (For Sale)
Prior boats - 2009 X14, 2008 X14, 2005 197, 1988 Tristar 190, 1989 Prostar.