I don't see the point of having several forums for the same company. I mean really, we are talking about a click away to get to the benchmade forum.
It becomes a matter of maintaining a worthwhile prescence on however many forums you have out there..that being the case, why not limit yourself to one forum and focus all of your attention there and do the best you can.
Not to mention the repeat questions, topics, etc that abound even when you have just one forum, and never mind several...it gets old very very quickly, especially when you are the "johnny on the spot" who's job it is to repeat yourself several times a day.