Am I ready to start working this exercise if I don't have the strength to resist gravity at every point along the descent? I can't fight gravity when the support leg is just below parallel to the ground, but I can catch myself at the bottom position (most of the time) before falling off support.
Also, I experienced two days of knee joint soreness/stiffness after trying this exercise for the first time, but after the second workout the soreness wasn't as obvious. I'm wondering if this is normal during the early stages of adaptation for this full range of movement? In my case, knee joint soreness occurred after starting SE-1 and SE-2 initially as well, but faded over time working each exercise. I'm concerned because the joint stress of this exercise is clearly higher than previous elements.