I'm guessing no rubber insulator necessary for 1366 as with other blocks.

@ churchy It seems more people than you think want this option. The cost of these plates is going to be negligible so other than saving maybe maximum 5 bucks, go ahead and include them so folks have options. Look what happened with the new Koolance block when it's thread started. Quite a few folks chimed in and said they wanted plates shipped with it so Koolance is providing them as well.