On Tuesday, October 29, 2019 at 11:29:46 AM UTC-5, Unquestionably Confused wrote:
While I agree that we're talking apples vs apples (sorta, kinda), I like
the idea of "making tracks" with a dovetail bit rather than laying down
metal t-track. While I agree that one could likely replicate the
t-track in wood using a key hole bit, do you think that it would
withstand as much clamping pressure as the v-groove.

My thought is that the latter would be stronger and less likely to break
free under undue pressure.

That's a realistic point that I had not brought up. The clamping pressure of the matchfit jigs far exceeds any T-track clamp I have ever seen. I have a number of jigs and a work table top that I made out of 1/2" MDF. Who would have thought that would work at all? But it does and quite well. The key-slot approach mentioned is inherently weaker because of the stress risers that occur at the right angle cuts inside the slot. I think they would break loose in 1/2" MDF for the applications I have done with Matchfit clamps.