In our area, we can either send the lists beforehand, or come with it the day of the tournament. Of course, you don't get to hang around see, and then choose the list. When you arrive to the shop, you present the list, and then join the others who are already inside.
We do it this way, while a bit more taxing for the TO, because the TO will always play (whoever he is, that way he doesn't know the lists either, since he is the first one to put his list down, with another player who would be the judge).
It's far from perfect, but it works for us. The ideal would be TO not playing, and lists sent a few days before the tournament, and that's how it is should be in any big tournament aswell.
And yes, i consider what you said unsporting, luckily we don't deal with it here.
Edited by DreadStar