Do you think he'd win the Supreme? If not, where do you reckon he would finish in it, theoretically? (He obviously isn't going to actually run in both.)
To win the County off 141, he'd need to be a 151 (absolute minimum) horse and the chances are there are 155 horses likely to get in off marks in the high 130s.
I do suspect Mullins stumbled across a newish route into the race lastyear with Saint Roi, when he revealed after the race that they were looking at SR as one of their main Supreme hopes earlier in the season but a setback knocked it on the head. He ended up getting into the County off a very low mark.
I also reckon other big yards with possible multiple entries in the race will have clocked what happened last year and kept a possible second- or third-string Supreme type back to preserve a mark in the 130s.
Then again, in recent years Mullins has manipulated Champion Hurdle contenders down to marks in the 150s:
Aramon - 154 in the Supreme, so potentially a 164 second-season horse, off 149 in the County.
Arctic Fire - OR 169 from running up to Faugheen in the 2015 CH until December that calendar year, won the County off 158 first time up after 14 months off.
Wicklow Brave - 145 novice hurdler (so potentially 155 second season), won County off 138.