Doubles and esgee48,
We apologize for the confusion with these blade grommets, I know they can be tricky. The grommet you are seeing, that is listed as the K Factor/Kblade/BLX Blade 98 (18x20) grommet, will not work for the 2015 blade due to parallel drilling.
The 2015 Blade 18x20 grommet, along with a few others, is not currently visible on our website due to an extended back order with Wilson. It should be available next week, though the numbers are limited.
Michael, TW Customer Service