I have the MFT3, the Woodpeckers MFT square, and the giant Woodpecker Red square. I cannot for the life of me get my material square off of it.
My recommendation is to not bother trying to square it up with the MFT square using the dog holes (the one made of black phenolic). I have 4 MFT's, and i couldn't get it to be accurate using that method on any of them. I found 3 of my mft's the dogs were "wiggly" just a touch, and one of them they were ungodly tight.
The MFT square, just using it as a square, is a good tool though
One thing i was doing, i had two MFT's connected, i'd put my 8ft long sheet stock piece on it, that was already cut to width with the 3000mm track and woodpecker parallel guide (Which btw, is amazing, constantly accurate end to end, unlike when connecting to tracks). When i would roll up on the fence with the 8ft long piece of material, i finally noticed that the length of the piece and weight of it was acting like a "jack" against the mft fence, throwing it out. So what I started doing now is i will "rough" break down the long piece, then put those much short pieces against the track and cut.
Doing it with smaller pieces, vs the long heavy sheet piece bending the fence out of square, gets me much closer to square, but not always perfect like my table saw would give me.
One thing i haven't done is to see if it may be because of my driveway not being perfectly flat; I'd figure though if only 1 mft table is involved and other surfaces aren't being introduced it should be that big of an issue though.
