Well. Finally getting around to incorporating a vertical table.
Went with a center hole 30" x 6" off to the right of center.
Cut the wastboard wide and full length to be able to sit the jig into the table and for easy replacement.
Still designing but I really like Jays design he did for his Avid awhile back and incorporated similar options. still debating on what to make it out of and the connection to the top to keep it perpendicular to the horizontal - TBD.
Will see how she turns out
edit: link to vertical table build in separate thread