I've worked up to 5x60s on this twice, try to transition to PE2 then seem to lose endurance in this...
I've been stuck on this basically since December of last year. I am able to perform 5x36, but then when I try to make the QUANTUM LEAP to 4x48 it's basically impossible despite scaling it back by reducing sets and sticking with it for 3 months.
Long story short: I am stuck, and would like to advance because the disparity between this element and others is nutty.