I was gone the past week so I didn't follow the previous thread.
JayPierce, I highly suggest you follow this progression that you found from pendlay and that you indeed learn full cleans FIRST. They teach you to get under the bar FAST. And you need that in a power clean as well, the only difference is that you get under it, but don't go as much distance. The important thing is to learn how to explosively use the hips/legs and then reverse direction.
You are not doing this almost at all and that's completely understandable even if you are trying. Part of it is you don't know how to think about it(haven't figured out what cues to use) and part of it is just that your body simply isn't strong/fast enough to do it anyway!
Also for the record, power cleans are almost the same as cleans if done correctly. Some people will intentionally pull less in a lower weight clean and instead practice going under the bar faster, but at MAX weights the clean and power clean pull are almost entirely the same. Full power, same trajectory at all times. The differences would only be small changes in COG(center of gravity) and really not something to worry about.
In any case, I don't know if your technique used to be better, but this technique you are using right now is just NOT beneficial to someone starting out. Besides trying to learn the movement, it will be more hassle than anything for a beginner who wants to have a good program. In the long run though, it will start paying off once you learn it. Just don't be misguided into thinking that a beginner will really benefit from doing power cleans like that.
There are also some youtube videos from coach mccauley. I suggest people start with the dirty dancing drill.
The pendlay progression practically does the same thing, except with a barbell. This is the explosive part that your body needs to learn and takes time no matter how much you try to do it right.
I also suggest a cue that you just "punch" into the floor through the heels, rather than trying to shoot the hips forward. Don't even think about the hips for now IMO. Simply punch through the heels straight(not forward or backwards) and then get under the bar.