Most of us old time racers kinda have our minds made up especially if we do our own work and engine building. But if you see something you don’t like you better be open minded enough to switch brands. Off topic but for years I was a type F transmission fluid user then 15-18 years ago my transmission builder said to use Walmart type III. Well last year a had a bad transmission issue unrelated to the fluid type and I switched back to type F because of the smell the Walmart brand had. It smelled burnt to me right out of the bottle. I now have a sorse to get type F and do my own transmissions so that will be my fluid now.