This is good information about not wearing the belt too low for the deadlift, but I find that as Rip touched on, Lilliebridge and KK's high belt position is best for my deadlift. I can pull more without a belt than I can with a low belt, but I can pull 50-75lbs more with a high belt than I can with a low belt.
Granted, I haven't tried a slimmer belt, but I don't feel the need to spend another hundred bucks on a belt when I've circumvented the issue already.
13mm Inzer forever lever belt checking in. I went with 13mm as a newbie thinking more hardcore is more better, but in retrospect I feel 10mm single prong is the way to go for most lifters. More adjustable and 10mm is more than enough support for even the strongest raw squatters.