Congratulations, it sounds like you were able to achieve your goal. But while on the subject, I thought I would pass along to all of you a great solution I found to my t-track problems. Lee Valley sells several different t-tracks on their website, including one called a Veritas Double T-Slot track. In essence it features two extra "wings" that project out of the extrusion at the bottom of the sides, that keep the track firmly in place without screws or glue. I bought their "Undercut Slotting Bit" to achieve routing the proper bed for the track to be driven into. And it works flawlessly, especially in MDF where screws tend to loosen. A picture of the extrusion is attached.