Spider Guard Sweep Kuzushi
I've been working on utilizing the over-hooky spider guard (http://1.bp.blogspot.com/_Ix-tTDFty4...rip+detail.jpg), and particularly trying to use this hook in combination with my other shin across their stomach/hips with my knee pointing out.
The sweep I'm currently working on involves loading their weight onto the knee across their hips and using your spider hook and a grip on their pantleg to direct their motion.
The sticking point thus far has been breaking their balance using my spider hook. It's unclear to me whether I'm trying to scoot my hips underneath and turn my hips out, use the hook to pull them forward or some other variant I haven't thought of, or possibly using different motions in conjunction, in which case I don't know when which one is best.