Smokey Boulder to first bridge has ~6 cl 5ish drops to the first bridge. First three are easy to scout from the road and the biggest. Below the bridge to Hazard confluence is not worth floating due to blowouts/ braids/ logs.
Small rafts can put on at the Hazard/ Hard Ck confluence if you want a little creeky fun. From Hazard down to the rest stop is cl 3-4. This section has some big waves and holes at high water but watch out at near peak flows, I've had my frame hit under one of the low bridges in this section (fast approach/ no eddies).
From the rest stop to town is mostly 2-3.
In general, due to the character, more water is better.