I don't think it would work in practice. Duplo tracks are thick and bendy enough that they would stay in place and hold the tension. Maybe some excessive misalignment would cause the track to be lifted, but the idea was to detect that at an earlier stage, as indicated in the original question ("I know I could just take one piece out, and put it back in to feel it myself").
> enough that they would stay in place and hold the tension
Then, what’s the issue? “Too much tension” is the question. A reasonable definition of “too much” is possible damage or that it affects performance.
Having experience with these, if it’s sitting on the ground flat, and it’s not being help there, then it’s about an order of magnitude away from “too much”, for damage.
I'm sorry, but you must not be familiar with Duplo tracks. This is an over engineered child's toy, specifically designed with knowledge that they will be abused.
Again, if it's flat on the ground, it's far from the point where something breaking is a concern.
