Hiza Guruma vs Sasae Tsurikomi Ashi
We've been practicing Sasae Tsurikomi Ashi more lately, but one of the instructors told me that my Sasae was more like a Hiza Guruma because it was too high. We never had instruction on Hiza Guruma before, I've just seen it done a few times and looked it up online. Is Hiza Guruma just Sasae Tsurikomi Ashi with your foot targeting the knee instead of the ankle? I thought it was, but some searching around leads me to believe I was probably wrong.
The below video demonstrates both throws, and some other Ashi Waza techniques. I think it looks good, but there are two problems I have: 1) I'm a Gokyu (some days still feel like a Rokyu) so I don't know how much confidence I can have in deciding what Judo videos are good or bad or why, and 2) the video doesn't give a detailed breakdown of the Kuzushi involved. As far as I can tell, it looks the same for both throws with different foot placement.
I'm posting this mainly because of a comment by PTNippon about his Sasae video below. Someone asks him about Hiza Guruma vs. Sasae, and he writes the following:
"The dynamics of hiza guruma and STA are quite different. STA has a lift while hiza guruma has no lift and uke is supposed to be rotated over along an imaginary axis. Hiza guruma is done while tori and uke have quite a bit of space between them while you need to be close to uke in STA to be able to achieve the proper lift necessary. On surface they may appear similiar but they are very different throws."
Really, no lift with Hiza Guruma? I don't quite understand the differences between the throws other than where I'm supposed to connect with my attacking foot. Should I do Sasae when moving towards and to the side of my opponent but Hiza Guruma when moving backwards? Should I favor one over the other?
Maybe this is splitting hairs, but I'd rather split the hairs and get commentary so I know what I'm doing than end up with a sloppy mishmash technique. I'm already throwing too many Harai O Toshis (where I mean to throw a Harai Goshi, but my footwork ends up more like Tai O Toshi), and that never ends well.