Is the 2014 Deluxe seat a unique size and/or fit?

[LucienLeFranc]

I think the answer is that they're all interchangeable, but please don't hold me to that.

What's the question you want answered? Is it whether a 2014 DLX seat will fit a 2017 EX?

I am possibly interested in this seat:

https://japan.webike.net/products/21724774.html

But the fitment information is confusing at best:
 "CB1100 -16 EX (except CB1100) 

I read somewhere that the 2014 deluxe tank is a different dimension than all other years and models (at least here in the US), and therefore seats made for other models/years may not fit my bike properly.

I figure if someone knows if for example the 2017 seats are the exact same size and fit as the 2014 Deluxe seat, then it’s a safe bet that the seat I’m interested in will actually fit my bike.