Knobby Cross tires suck on the pavement, slick tires slip on the Muddy Cross Course.

Not Racing, I rode WTB Alterainasaurus, 32/32 , a compromise tire, for a while .
put a slick Jack Brown 33.3 wide one on and rolling resistance was significantly better.

a Continental Travel contact is slick in the center, has a row of knobs on the edges,
its their Adventure touring tire for paved and un paved roads..
the 622-37 may suit.?