I believe this is, as far as I know, because the Red/Yellow ball is a solid, finished at P2000 grit polished.
The Orange Purple ball is a pearl, finished at P2000 grit polished.
The Blue/Blue ball is a pearl, finished at P4000 grit and left dull.
I also believe, from what I can see, the core is from the Code/N-Code, but was elongated to increase the RG.
"None are so blind as those who will not see." "Some bowlers are crazy as pickled cats."