[@tobiax] Okay, thanks, but I would suggest putting that somewhere in the OP because it isn't there.  I checked the whole post, and based on the descriptions of the congro and the innate powers of the different types of Matoran, you can get kind of an idea, but it's never explicitly explained anywhere.

Still interested, and waffling between a Vo- or Ta-Matoran, or maybe a Fe-Matoran. Suffice to say, I'm in and will get to work on a CS soon.

P.S. If you're going to keep with the canon of each type of Matoran being only one gender (all Ta-Matoran male, all Ga-Matoran female, etc.), that would also be a good thing to put in the OP so people know what gender is associated with each type of Matoran.  If you're going to throw out that part of the canon, though, that's totally fine.