Is it said "yo-HAN-ez" or "YO-han", or are you saying it a different way?
Regardless, I think it is pretty great; it's got super-old-school cool written all over it.
Though it appears long, I think it does well withouta nickname. Nothing reaslly comes to mind anyhow. Yo? yuck.
Johannes JudeJohannes TheodoreJohannes FranzJohannes BeauJohannes VictorJohannes KarlJohannes WilliamJohannes Henry