Which Spark plug in 2012?

[morg]

I'm just wondering if Yamaha still put the '9s' in the 2011 and 2012s. Did any 2011 owners switch to the '10s'? Where is the best place to buy them and how much per plug?
Thanks.

 

[BlueApexXTX]

The 10's dont make any more power in the new Apexes.Straight from Allen Ulmer.