> I wouldn't do this. It just takes off unnecessary copper. If you have > something squeezing in from the other side you might be happy for the > extra bit of copper. I was thinking of 0.5mm pitch TQFPs for example. The triangles are on the order of a mil or so each, and reducing 144 clears to only 4 is a *big* savings. Like I said, "we'd need to be intelligent" about it.