Reply by Loren

I just clamp the fence to the table. Then you can move the fence
1/8” at one end while the other end stays clamped at the distance
at the bit changes by exactly 1/16”. Most router table cuts are
edging cuts and most fence adjustments are small ones.

There’s not much benefit to having a parallel fence imo,
unless you are (a) using it as a stop in tandem with a miter
gauge in a miter slot (which you don’t need either in a router
table) or (b) need parallelism because you are using a power
feeder.