[smileyman]

I run 42 for commuting as well, 36 front. Canyons get a rational 32/36, racing and tracks days get what the vendor specifies for that compound that day, starting at 30/29 and down...

You do have to watch your radius and adj suspension to match, that is why I usually pick a tire and stay with it cause once you work to dial it in you have to start all over with a new brand/size.

I know some folks who judge a tire after a swap without even considering what the suspension setting were...