A couple of notes about the recap.
Get back foot drag line to point directly towards the plate.
I propose guys that the toe drag is a result, not a cause and that focussing on trying to make the toe drag go in a certain direction is taking focus away from the important things.
Keep glove pointed up and towards 1B side of home plate longer.
This is not an absolute. Some do this pointing the glove thing but most don't. If you really feel you must use this glove arm action, fine but be aware that it has the potential to create problems if you allow it the glove to roll over early, which you don't, thankfully AND with that weight out there at the end of a long lever (your extended arm), you must NOT allow it to drop straight down from that point, causing premature opening of the front side. Most pros keep a bend in that elbow and sweep it across the front of the body at shoulder height, keeping the glove side thumb pointing downward to combat early opening.
Either way can work. Just be aware of the pitfalls of this particular motion.
Keep glove-side foot under knee.Again, some do, some don't. Most sweep to some extent. There are those who say this is inefficient and there are those who say it's beneficial. The important thing is whether or not you are landing on line (landing closed is one potential pitfall of sweeping) and if the timing of the parts is right.
I think we've got the cart before the horse here. I'd suggest that it's his hip thrust, combined with what he prefers with the leg, that results in the sweep. Just sweeping the leg can happen with very poor hip thrust and good hip thrust can happen by not sweeping.
Once again, these are personal preferences of various pitchers. They must be put into a proper, holistic context. Clemens has a short sweep while Kaz exaggerates it more.
Have they taken video of you and looked at it in slow motion or frame by frame and then compared this to what the pros are doing? Not too many I've run into actually do. I find that I just can't see the finer points at full speed. The arm moves much too fast for that. You need video to see stuff.