Maybe what's needed is some kind of a nosewheel strain gauge that will detect the three-point trike landing and alert the poor owner.
Put a load cell in each wheel and you can have a graphic display of W&B
On my CPL check ride, the examiner told me to do a flapless landing just as I had turned a tightish base for normal full flap landing (in a 172). Even after slipping the thing in, the result was crossing the threshold at 100kts.....and did I float....for 5500 feet to be exact

I would have gone around early but he wouldn't let me, and afterwards he gave me a lecture on the importance of using correct approach speed, which was what this demonstration was all about (and that he wanted a long landing to get back to the flying club quickly as he needed a piss..still I passed).
He also made me do a SF landing, but coming in at 50kts, and dumping it right on the end of the runway. The result was we stopped in about 300'.
EA