Sweepy wasn't a hiza guruma. However, hiza guruma is most definitely a half throw technique. Most judo foot sweeps have a half throw foundation, I'll link all my saved judo sweeps and you'll see a common trend.
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I'd also like to propose this: It's somewhere between a full throw and a half throw, I turned my chest from one side to the other, but didn't switch my pecs because if I did my opponent would have had a chance to recover and land inside the dojo. I think I'll call it a three quarters throw (3/4 throw)