I had the same problem: 1 "all-in-one" lens (in my case, Rose) that made me squint in sun and I they were too dark in overcast/shadows. "Jack of all trades/master of none"
(even the best "automatic" lenses only range from about 50-20% VLT)
everyone should own 2 lens options, one in the low VLT range for full sun and one in the high VLT range for flat/overcast light.
don't be that guy riding around in flat light in his low VLT/ultra mirrored lens. Granted, some of them can't afford another lens...but others are intentionally sacrificing vision just to look cool (noticed a lot of that last time I was up)