i do see the value of a good volume of low int corework and maybe upperbody (for work capacity purposes and the fact that the devel. of slow twicth wouldn’t interfere with the leg muscles) but essentially the program you run is plyos and running only for the legs?
sorry if im being intrusive at all, but i added a lot of strength and have bulked up to where i look the same size as the other 55 sprinters (i used to be very small and thin) and while my vertical and weights have siginificantly improved for me, my sprinting hasnt yet. so maybe the heavy lower lifting isnt for me (ran a 6.98 FAT before ever lifting or speed training, 6.93 now after two years :/)