My router table top and fence are both MDF. The fence is the same length as the table so I've been using clamps on the ends to hold it in place for table routing. I would like to switch over to a hold down system that remains in place. I could make a bolt hole toward each end of the fence and cut slots in the table top that line up with the bolts hole to allow the fence to move toward and away form the router bit. I know that some use T track instead of slots. Or, I could make bolts holes in the table top and cut slots in the fence. Is there an advantage to one method vs the other?