I purchased 2 sets of Michelin Pilot Sports back in March of 2016 for my '05 Roadster,
I've put about 14,000 miles on it since then, however, the tread on the rear ones are at 1/32 and the fronts 4/32.

I haven't had them rotated due to the size difference on the front and back and from reading on here there is no point to rotate left/right.

From what I've read, my tires are still covered under their treadwear warranty -
"30,000 Mile Warranty" as listed here: http://media.michelinman.com/content...6_REV_0716.pdf

However, will I be denied due to not having #6 under the treadwear warranty? -
"documents showing that your tires
have been rotated and inspected every 6,000-8,000 miles"