Leo, the armadillo is actually the most accurate way of determining axis tilt, more accurate than the transparent overlay method I show in that video. I always do both, measure with the armadillo on the lanes, then use the video and overlay to confirm it, since I use the overlay for finding axis rotation anyway.
While it's easy to figure out and not a bad idea to at least know your whole lane ball speed, it also isn't going to give you the most accurate specs. The problem with it is that finding your average ball speed is not the same as the ball speed used in the rev rate / ball speed chart, so you won't be able to accurately know if you are matched, speed dominant, or rev dominant (you can probably get an idea...but won't know for certain). This is compounded by the idea to use a plastic ball thrown perfectly straight, which will cause the speed to be higher than you would get with your normal reactive ball / hook release. It doesn't take much of a difference in ball speed to make a big difference in how your revs / ball speed match up. For every .5 mph of ball speed change, you will need to increase or decrease your rev rate by 50 revs to remain matched. Also note in centers with electronic scoring that the speed that the monitor shows is most often taken towards the end of the lane, so that also is not the most accurate speed to go by (usually 1mph - 2mph slower than off your hand speed, depending on lane conditions and how much you swing the ball). Taking the speed measurement in the first 15 feet of the lane takes all that out of the equation, which is why it is the preferred measurement.
In order to accurately apply Mo's system you need to know whether your speed and revs match up, or if you are speed dominant or rev dominant and the best ball speed to use for this is your off your hand speed. I realize getting a hold of a video camera
and going through all those steps in the video may be a bit of a hassle, but the end results will be well worth it.