I would definitely fear the learning curve when attempting a switch from right to left-handed ass wiping, so I have to give Zero a +1 for a very strong argument. We might ask Gute or the league to incorporate a test of that particular skill as part of the evaluation process. For all we know, the left tackle position could already be largely populated by ambiwiperous former right tackle athletes and we just haven't tracked it properly. I don't see the league making it part of the combine though, as it doesn't quite carry the television appeal of say, the 40 yard dash. I could easily be wrong on the TV appeal, being a boomer and all...