Well, I’m experimenting with doing this on top of (after) what you advocate. And in the second overspeed session (after 12 minute rest) I hit 2.41 for 30m. Such measurements are of course fraught with error, but it was fast enough that I don’t want to think about going faster than that. So all week I was thinking about your 10-day rule about spectacular performances, and between the last overspeed and the race this weekend, I did absolutely, positively NOTHING. No submax, no tempo, no starts, no weights, no plyos, no nothing–just get through the week uninjured and see what you get.
I have not gotten injured and have had no pain (hamstring or anything else) all week.
At this point, it looks like this works to taper down to comp from what you have in your SPP lecture. From what I’ve experienced, there is no way you can do this type of training as part of a Charlie Francis SPP structure–you have to cut everything else back too far and there’s no chance of anything like 3X/week with weights after track or 4X/week with weights before track like John Smith has it. The contrast/overspeed has to be done as the final taper.
But now after I have the PB, is THIS the peak, or do you peak off this after a few races? Only one way to find out.