Are we supposed to guess which ones you were looking at?

Can't tell you the difference between the "two brands" if we have no idea which "brands" you were looking at.

That all said, Dr Diff sells UCA's for b bodies near that lower price point and I have never heard anything bad about his stuff.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.