I think grey is the most common. Then blue, then red.
Someone actually mentioned a while ago that the first batch of 101's were
all grey. Then later Roland wanted to spark more interest in them and so
they re-released them or something in blue and red, but they had lower
quality components, just a rumor I think. I'll tell ya one thing I know for
sure, red and blue look cooler = )
good luck on yr info hunt
Devon
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