Using a mix of XL tyre's and non XL tyre's?? Help!

[M90SR]

Been offered two pretty much new Michelin PS3's although one is XL and one isn't.
If I use this setup on my front wheels will I notice any difference? Or should I go both XL or non XL ?

Regards,
Jay

 

[jesus]

I had this dilemma too. Ended up just biting the bullet and having 1x XL and 1x non. Didn't notice any problems but someone might know better.