ChuckNorrisCutsMyLawn
Crusader
That's a postulated/posited potential "ability", some savants seem to do it easily enough, does that mean they're Clear?
I don't know any Clears who could do it with certainty (unless, of course, it was a particularly memorable shirt) and don't agree that it's a good test of whether or not the guy is Clear.
It would be a simple start, there are many other characteristics Hubbard claimed besides total recall. The fact still remains that Scientology has never stood up to the claims Hubbard made and Hubbard was never willing to have his material be scientifically tested ... and for good reason of course. It's a hypnotic con game. All it can ever do is make you believe it has power nothing more. Look at poor George the OT VIII, he is a model Scientologist, his head is so messed up by Scientology, he actually thinks barking out idiotic hypnotic anchors will have the same effect on someone who is not brainwashed as it does on him and other OTs.
Oh and yes savants would be closer to Hubbard's characteristics of Clear than any Scientologist who was conned into believing he or she attained that state and attested to it