Michelin vs. Pirelli vs. Dunlop

[M-A8]

Are Michelin's Pilot Super Sport directional??

I can get 4x with 4-5mm thread so I can check the wear in the inside before splashing money on new set for around £235, but it's not listed which readings are for left and which for right tyre.

Check the links below.
Give me a minute and I will explain what I'm thinking about.

1st pair:
Tyre 1 is between 4.8 to 4.2mm
Tyre 2 is between 5.0 to 5.2mm

2nd pair:
Tyre 1 is between 4.7mm to 5.5mm
Tyre 2 is between 4mm to 4.6mm

>>>>>

So, as my rears wearing very slowly and evenly, idea is to put:
Tyre 1 is between 4.8 to 4.2mm (1st pair)
and
Tyre 2 is between 4mm to 4.6mm (2nd pair)
on the REAR

And:
Tyre 2 is between 5.0 to 5.2mm (1st pair)
and
Tyre 1 is between 4.7mm to 5.5mm (2nd pair)
on the FRONT

Would I be able to do it??
Sorry, it's possibly a silly question, but sometimes simple things can confuse me

Cheers

1st pair
http://www.ebay.co.uk/itm/2x-275-35-...item2c89609fe6

2nd pair
http://www.ebay.co.uk/itm/2x275-35-2...item2c88ce587b