The SB-600 and SB-700 aren't very much smaller than the 800. Possibly what you want is part of the R1 macro kit, the SB-200, although I suspect it is not entirely trivial to mount it on a Wimberley flash bracket as it is designed to mount in quite a different way.
An SB-400 does not function as a CLS remote, so unless you're planning to use it on an SB-29 cord, it isn't a candidate either.
You should probably look into the R1 kit as a whole, although it is really, really not what you asked about.
_____ Brian... a bicoastal Nikonian and Team Member
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