So, I've just gotten done with training, and they really didn't have us practice wall/shelf building much. Maybe 5-10 minutes for the 4 days. However, I did do an hour last night and have my first full night, tonight. My walls seem pretty chaotic. I'm not sure how to fit the various boxes in a way that makes the whole thing 'tight', and I guess I want the whole thing perfectly aligned; or at least stable. It wasn't a *bad* wall, I don't think, but there were some slanted sections on the bottom which made it difficult to stack more on them. How do I build a good foundation to where everything will end up straight? If bigger boxes come out, then that works out; but what if smaller packages are coming in? Can you start a foundation with the smaller ones? Also, I was only able to do 130 in the hour last night, but I had a pretty slow flow, too. Do the supervisors judge you on how many boxes you get through even if the boxes just aren't coming? One more thing: I want to get into the sorting position after my probation is over (though, since I'm only 130 pounds, I like the idea of buffing up a little--but more money sounds better), so is there anything I can do to prove that I'm worth it?