Were there significant upgrades to the newer model? I bought 2013 Ride Insanos because they were $200 less than what the 2014 Insanos were priced at, and the 2014's didn't have any major changes made to them. If you have an awesome fit then I would suggest sticking close to that fit. Or you can try the 2014 boots and if they don't feel similar then return them.
Are you in Europe? If so, are you planning on selling your 165w? And if so again, what year is it, hahah?