Can't help on the spec, my 98 DLX came with a 13x13 OJ.
I had a conversation with Scott Pellaton from Sanger at the Sacto Boat Show, and they are now using ACME props because ACME's stuff is superior to OJ's in pretty much every way.
I do not know when they changed over.
If you find you have an OJ, I'd swap to the ACME. Do a search and you will find that there is a recent thread where some of the experts on here had a good discussion on this topic..
I am going to buy one sometime this summer.