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I do both of them as lateral drop, trapping stiff arm under my armpit.Originally Posted by Doughbelly View Post
Take two superficially similar but mechanically very different throws - sasae tsurikomi ashi and hiza guruma.
Sasae tsurikomi ashi, particularly textbook STA from classical grips is not a short man's throw. Outside of variations where tori is body to body with uke and lifts uke completely onto himself, sasae tsurikomi ashi quickly become more difficult to do with an increasing height/limb length disadvantage. After a certain point in height disparity, it becomes pointless. On the other hand, my taller opponent gains a significant edge as he gets taller.
OTOH, hiza guruma is a much tighter, compact motion for the smaller man and can be used despite large height discrepancies.
Well, it is a bit of a sliding scale, but the point being that the principal action of sasae tsurikomi ashi happens in kuzushi; without tori pulling uke up and forward, it is not sasae tsurikomi ashi. Sasae tsurikomi ashi is no more realistic in practice (with standard grips) for a 5' 6" tori to perform on a 6' 2" uke than a 6' 2" tori to perform morote seoi nage on a 5' 6" uke.
Speaking in classical terms, sasae tsurikomi ashi has a very clear upper body lift component (elbow pointed and pulling up and out in classical form) whereas hiza guruma you're pulling down and around the circle defined by the pivot of the knee.
Without seeing your lateral drop, it's hard to say.