dad-gum oil debate

Guys I’m having a hard time choosing which oil I want to switch to now that I’ve got 4k on the odometer. I’ve been running Yamalube up to this point. I’ve read plenty and am just curious to see what yall are running. Honestly I’d like to go with something that can be had at Wal-Mart or a common auto supply store. If I’m in a pinch I want to have a readily available supply no matter where I’m at. I've been going back and forth with the idea of synthetic or regular. For synthetics I'm eyeballing the Mobil 1 V-Twin 20w-50 as well as the Mobil 1 Racing 4T 10w-40. From what I can tell the Mobil 1 V-twin is more designed for air-cooled engines with an external primary drive…plus it’s not JASO certified and I’m not sure it’s ok to run with a wet clutch. For a non-synthetic I've been thinking about Valvoline's 4 Stroke Motorcycle 20w-50. Opinions? Concerns? Thoughts?