I have a Festool MFT table but the cutting fence is way to short for the stopped dados I want to make for a handrail. Sliding the workpiece under the guide rail or repositioning the workpiece under the fence may not be wise? I have two large sections of fence I can join. I have the Festool micro adjusting router guide that clamps to either one or two of the fence guides. I am trying to come up with a better jig than simply clamping a long fence section to a 2x6 or 2x8 for making a straight dado cut in regular 1 1/2" SYP. The router lacks the stability of the Festool saws when riding on the fence. Maybe I need to make a more accurate jig for this?

The other option is to invest in Festool's or some other edge guide. I thought I would post here first to see if others have come up with a better solution using the fence system?