Have been looking at the resolution charts downloaded from the Adam Wilt article

and have applied the colour space equations below to look at the chroma resolution

Y709 = 0.213R´ + 0.715G´ + 0.072B´
Cb = –0.117R´ – 0.394G´ + 0.511B´ + 128
Cr = 0.511R´ – 0.464G´ – 0.047B´ + 128

unless I'm doing something incorrect the Canon 4:2:0 has way more chroma resolution than the 4:2:2 Pan'ic - in both directions!

help me here