Bridgestone M713 Ecopia

[JimT]

So, I just called around to find a new set of 4 tires to go with the 4 Bridgestone M710 Ecopia's that I bought a couple months back. No one has any and I'm being told that they have been replaced by the M713 Ecopia tires. Supposedly an improvement on the M710's they have a slightly different tread pattern.

So, here's my dilema: Do I go with 4 M713 tires or do I get 3 M726ela (to go with 1 new one already installed)?

The M710's come with 26/32 of tread.
The M713's come with 24/32 of tread.
The M726ela come with 32/32 of tread.

The overall tread design on the 726ela is nearly the same as the 710, however it picks up way less rocks then the 710. The new 713's also appear to have a tighter tread pattern which should pick up less rocks then the 710.

The 726ela also has a MUCH better rolling resistance rating compared to the 726, though not quite as good as the 710.

I guess one of the biggest questions in my case is, will 26/32 on one axle pair ok with 32/32 on the other axle? The 713's, brand new, would be almost identical to the remaining tread on my 710's.

Anyway, looking for advice, opinions, and any feedback. Trying to make a better informed decision.

PS: Incase anyone is wondering, I run mostly highway PA, NY and the northeast. Maybe 1/4 of my deliveries go into job/construction sites of which maybe 25% are dirt/gravel (So 1 out of 16 deliveries on average).