Looking at what you posted in your training log, it doesn’t seem too far off from Westside-style speed work. Whether or not speed is relevant to this sport is debatable, but one thing we all agree upon is that doing multiple low rep sets with a moderate weight does provide a training stimulus.
Just curious, when you work with weights that aren’t particularly challenging do you attempt to move the weight as fast as possible or just apply the necessary force to complete the lift? Fred Hatfield came up with the term Compensatory Acceleration Training (CAT), which can be applied in a submaximal speed work fashion but also to other work sets that are more challenging or for higher reps. The idea is that by applying as much force as possible it recruits more and larger muscle fibres, as well as keeping them activated through a larger range of motion. It also trains the nervous system to automatically apply more force into your lifts, rather than moving light weights slowly or reducing speed as you pass the sticking point. I have been applying this to my training for the last while, I have seen the most results in my squat.