I'm still working through his stuff, but this is what I gather thus far...
No periodization at all. No linear, no conjugate, no concurrent. Stay as close to maximal as possible all the time - off season, in season, no difference.
Overtraining is basically impossible. If you eat and sleep enough, you wont get overtraining symptoms.
Heavy use of isometric "extremes" to build certain physiological qualities that he does not really define.
I am going to withhold judgment until I get all the way through Jay's material, but I can tell you already that I see some major warning signs. He talks constantly of "oh I learned this in the Soviet Union" but none of what he says is consistent with what the Soviet authors themselves have stated. Zatiorsky, Verkhoshansky, Bompa - none of these guys would fall in line with what Jay says. So, that is troubling to me. If you say that you are using Soviet bloc methods, yet they are completely different than the head Soviet strength coaches, something is a bit awry.
I'll try to offer more feedback when I finish listening to these.