Found this braking test of 185/60 x 15 'summer' tyres which includes the michelin energy saver+ and the avon ZT5 (are those what you aere looking at?)

www.tyretests.co.uk/summer-autobild-brzdnadraha-18...5

I can't see from what speed these braking tests were done from, but the difference in dry braking between the michelin and avon isn't too big, though still bigger than i'd expect (in favour of the michelin). The difference in wet braking though, is HUGE, the michelin stopping more than 10 meters shorter than the avon!.

Obviously this is up to you, but the combination of just how much better the michelin performs in the wet, coupled with the fact that, like SLO, i prefer to have matching tyres all round, means that i would definately go for the michelins.

Edited by badbusdriver on 05/03/2018 at 10:42

I try to keep identical rubber on all four wheels if at all possible as it keeps the same level of grip on each corner. Last thing you want is plenty of wet weather grip at the front giving you too much confidence in the rear which has less.

Never bothered about having different brands front and rear until a few years ago, probably 15 at a guess. Had a Puma which was a great car with very tight handling. The original fit Goodyears had worn heavily on the front in about 15,000 miles and with winter on the horizon I fitted 2 new Michelins. Normally i would have put the new ones on the back but there was no measureable wear on them so simply fitted Michelins to the front. It totally spoilt the handling of the car, even at moderate speeds on urban traffic islands you could feel the back end had a mind of its own, add in a little damp and a push bike could pass you. So I fiited Michelins to the rear and normallity was resumed.

Will never mix tyres again. It may have worked with the narrower tyres of years ago but it it seems to me that the wideer/lower profile ones fitted today are much more sensitive.