The best synthetic motorcycle oil you can afford is what I'd recommend. Think of it as cheap motor insurance. Might cost what? an extra $15/oil change? approx $30/year for the average rider for motor insurance is cheap. Why worry about whether the less expensive oil is doing it's job?
This is IMHO a fallacy- how much an oil costs has nothing to do with how well it performs in any given circumstance. I highly recommend oil sampling analysis to determine what's right for your engine and your wallet. Owners are nearly always spending way more than necessary. I use https://www.blackstone-labs.com/?ses...vgmux%29%29%2F
Words aren't children and there's nothing wrong with killing them to clarify a point or keep the peace.
The one huge difference between synthetics and dino oils is cold weather performance. If you don't believe me, buy a bottle of each and put it in your freezer for 8 hours or more. Then see which one turns almost solid while the other one still pours easily.
Now imagine your motor on a cold winter morning trying to get lubrication from dino oil that is stiffer than molasses.
I don't think there is much difference in oil as long as it meets the spec. On the F150 forum I participate in, one of the members works in an oil co. lab and he keeps telling us we are wasting our money buying synthetic. He uses Pennzoil or Havoline dino in his truck and runs it 7500 miles with testing to confirm it's okay. I do believe in making sure it has the Jaso MA rating for my bikes.
I been using so called dino oil for about 50 years with no issues so I am not going to start shelling out about double for oil when I don't have to.
I used to use all sorts of oils for a variety of bikes. When searching for a good filter for my Ducati I ran across Amsoil. The rep set me up with an account free for 6 months which got me discounts worth buying in bulk. When I say bulk a couple of oil changes for my bikes. I found there support was superior and their products top notch. Consider communicating with someone there as they are professionals. https://www.amsoil.com/lookup/motorcycle/