Yellow isn't a good mid-range lens though, which is why he has the persimmon. Mid-range as in borderline sunny but still cloudy days, or high overcast days. Those days where it could either start to snow or clear up and be sunny. You could upgrade the persimmon to an emerald irid or blue irid though, something a bit more techy but still does the same midrange stuff.
I use my emerald for every condition but whiteout/blizzard/night riding, where I use my hi yellow. It's an ideal combo personally, though on really really bright bluebird days something darker could be nice.