hmm since im sick of trying, i just started thinking about it, and got an idea :P
my suggestion would be, to grab 2 other guildies. one that stays back, just so shiro has enough reason to banish a player. the other guildie that has less HP then you will get banished first, but you do NOT kill the bound that appears. youll just run around shiro and wait til he banishes you. i doubt you'd end up at the same place like guildie #2, so you'll end in the diff one! im gonna try this later when im done exploring somewhere else
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maybe this is the key to success, hehe :P gl with it if you're gonna try.
(Guildie #1 highest hp, stays back so shiro has a reason to banish
Guildie #2 less hp than you and #1, gets banished first
you with middle amount of hp, to be banished second :P)
EDIT:
okay, ive been trying stuff out. i cant really figure it out. i tried with a guildie and lukas, seeing how lukas usually gets banished first, i thought id be next, but nope. the other guildie was. and yep, i had less health, anyways, to my surprise, the guildie ended in the usual spot and lukas was in a different one SOUTH of it, been trying a bit more and they never end in the right one, just in the 'normal' one or the one south of it. (i wasnt able to reach neither the south nor the right one, there goes a bit of canthan exploration % i need =/)