I don't really program Saturday's. It's not that I DON'T program at all. It's against my nature to just throw any old thing out there and let you work with it. But, Saturday workouts are extra credit. If you missed one during the week, I'd prefer that you come in on Saturday and make it up. If you didn't miss any, the programmed Saturday workout is usually a fairly middle of the road gig. It'll get you a workout, but I try hard not to leave you limping - much! It might even help you work out some of that soreness from yesterday.
Crunch twisting to the R means only R. They are repeaters.
Don't love the thought of juggles? Cool just let it fly a little bit without flipping it (demo'd on the R). Letting it go at the top of the arc and catching it on the way back down will still reward you with most of the benefit (sans coordination & accuracy).
Why KB juggles? It really is a different thing. 50 swings vs 50 juggles feels VERY different. Plus, I like to stimulate as many aspects of fitness as possible. Juggling a KB increases your skill, coordination, balance and accuracy. This is in ADDITION to the normal benefits of a KB swing. We don't do these all the time so try to milk as much benefit from them as possible.
Does the 6" leg hold hurt your low back a smidge? Try bending your knees, elevating your legs and pressing your low back into the floor harder.
If you are looking for a little more out of those abs today, consider switching crunches for crunches on a ball. Don't have a ball? Cool, just roll up a towel and place it in the small of your back. Keep the small of your back pressed into the towel at all times as you do your crunches.
If you do the extras, just keep in mind, it's a LOT of TTs. Most of us will get sore from 50.