Do you guys swivel the front wheels and straighten the back wheels or vice versa?
Depends on which is more important, how you wheel the cab around or how it moves when it's in place. With a 2x fixed + 2x swivel arrangement, you want to the swivels to be on the side you would mostly push/pull the cab. It's really difficult to translate enough force on the opposite side to change directions with that much weight.
To see what I mean. Go to a store with a standard shopping cart with that kind of wheel arrangement. Now put something really heavy in the cart, like a couple of big bags of dog food. Now try to push the cart and change directions. If the swivels are in front and the fixed are on your side, you'll find it's not easy. Now turn the cart around so the swivels are on your side. You'll find it's far easier to change directions with the cart.
The thing with an arcade is the swivel side moving when playing an intense game. If you put it on the CP side, it's likely the cabinent will shift around during intense games. Putting it on the other side makes it more difficult to move during games, but also harder to steer into/out of place.
I put wheels on almost everything that weighs over 200lbs. They're worth the extra bucks. On most, I put the swivels on the side I'm most likely to use to move it around. If shifting is an issue, I find some way to lock the swivels into a fixed position.
I always seem to have trouble remembering how to measure their ratings though.
