[sanddrag]

I'm not really sure how angled wheels would provide easier turning (I have seen teams do this for some odd reason I've yet to understand), but in a 6wd setup, many teams choose to lower the center wheel so that there can be at most 4 wheels on the ground at any given time. I've found 3/16" offset to be sufficient. Personally, the rocking (tilting) with 3/16" offset was a bit of an annoyance for me. But this was for the Triple Play game where we were trying to place a tetra with a long arm. I'd split the difference between 3/16" and 1/8" and set it at 5/32" (if you keep tolerance on these sort of things to that small). Of course it somewhat depends on what tires/tread you are running. Anything over 3/16" I think would be excessive and anything below 1/8" would be too small.