Hey brah, I'm genetically gifted for getting shin splints. A single session of plyos, skipping, or slow running gives me significant shin pain. It was a big issue for me when I wasn't managing my own training. Angus basically nailed it. Nothing helped except finding the right amount of work to do. For me this amount was well below what I would do for a cardio stimulus, which was emotionally difficult. The other difficulty then becomes splitting up the work between various exercises that involve impact. Atm I am doing plyos, running, and skipping. This means I can only do a bit of each, and my shins are usually a little bit sore most of the time. However as the months go by I am able to do more of each. So basically start with a tiny amount of work in the activities you want to do, don't try to progress it, repeat that small amount of work consistently for several months. Once you're sure your body is used to it, then you can progress it. Slowly.

Start by teaching the client the movements with a load they can completely control. Could be a broom stick or an unloaded barbell. If they do it to your satisfaction take a small jump in weight and repeat. Repeat this process until the set becomes sufficiently challenging for them. There's no need to have a new/newer client max out or hit failure on a compound lift. If you do want them to max out for some reason you can have them hit a rep max like a 5 or 10 RM, so that the absolute load will be lower whilst keeping effort high. Don't worry about prescribing percentages in the period before you client has a 1RM, just go off perceived set difficulty (your perception, and theirs). Once your client has had a few months of exposure to the lift you've taught them, you can teach them how to safely fail the lift, e.g. using safeties or bailing on a back squat. If you're satisfied with the client's competence & that they can fail a lift safely, you can now have them max out.

Strikes me as hard to quantify. I wouldn't get lost in the mechanisms. They squat low bar because more external load can be used low bar.

@Christian Bosse Embracing the coach position, nice. No overhead squatting for me atm, sore wrist. Lots of other squat variations 👌

@Christian Bosse I'm good bro but thanks for the offer 🙏

General strategy I go for is to overshoot, tell myself I won't do that again next week, then overshoot the following week.

@Christian Bosse Life seems to take care of the deloads.