There is not that much to say - it works fine since over a year on both Stridas - mostly.
Sometimes, even equipped with the very strong magnet, it takes two or three attempts to pull the seat pin out.
(The hole in the seat molding must be aligned accurately to the seat pin.)
I’ve changed the pins maybe 50 times by now.
Sadly, it is not possible to convert a constructional fault into an ingenious concept…
Actually, I’m still thinking about a fully adjustable, foldable saddle mount solution, function like the fictive version shown below:
What do you think about that, might that be useful?