Cool writeup Splinter... I'm sure people within "shipping cost" distance will have something to consider.  I've always had the hots for those multi-tracked extrusions, but availability and shipping cost have always role played a cold spoon and dampened my desire.

I'm content with my  Biesmeyer style fence if only cause I have some tracks in it for mounting accoutrements for tablesaw on one side,

and router table on the other,

though I had to pimp it out with a Wixey to make it useful/accurate.

If your first cut is too short... Take the second cut from the longer end... LBD