Examples of lower gain lead tone over higher gain rhythm tone?

[goodsal]

Does it always make sense to have the lead or solo tone be higher gain than the rhythm tone? I was trying to think of examples of a relatively clean solo tone over a crunchy rhythm tone and couldn't come up with any off the top of my head.

[allencollins]

the live version of freebird from one more from the road has a cleaner lead than the backing part

[jickph01]

The Rover by Zeppelin comes to mind right away for me.

[Baxtercat]

I've heard some Aerosmith solos like this.

[Crowbar]

I'll second the Led Zep comment, lots of there tracks are like that.

[craigwright]

latter-day grateful dead...

[Radardog]

Almost anything by Boston