So, I gave mine a try today. It worked well, and was about as easy as something like that could be to swap out.
The downside I discovered, and should have anticipated, is that every change throws off the Z-offset. This is particularly irritating on the mini with 10 minutes of heat/cool/wipe/level per test, and a cool down for the bed. It can easily take me an hour to dial in to the new value.
There has to be a better way. I was thinking of a program that could take a gcode for something like a slow spiral and allow me to tune the Z-offset as it prints. That way, I take the hit once for the test. Maybe a way to use feeler gauges to test and calculate a good value?