Would it be better to use either the SB with my dremel work station that doesn't drill straight it has a slight angle or use the cheep o revel axle drilling piece, that can drill straight but with non canted holes. I have learned to roll the SB vs flipping it so both rear holes are at the same wrong angel vs opposite wrong angles. So my front to back is the same but the up and down is as close as I can eye ball and measure from the fence to the bit (both sides) can get me. Doing this I get an interesting out come, if I have the DFW on the right the right rear migrates just fine and once its out then the left rear migrates, if I move the front Dom to the other side the rear does the same thing only in reverse, including rolling backwards. I have not tried putting a balance point front middle to see what it does then. I did this on 2 cars. Is there any way of limiting the drill error? and how much speed is lost because its out of alignment?