I really appreciate this! The hockey puck might be a great addition to the stands, or at least something along similar lines. It looks like the material, even if cut thinner, would be durable enough to endure repeated use. I've used whole pucks once or twice in the past on top of a jack saddle back when I had to lift my car under the engine and they worked nicely.
I have a lot of respect for USJack since they're still building their stands domestically. If I remember correctly, they're one of maybe two that still do. A while ago I had the privilege of speaking with their product manager, and though I can't say I've used their products yet, he was a great person to speak with and I thank you for reminding me about them. They might be worth revisiting.
Can't thank you enough for your help!