One of the little problems I’ve had with my NTNs is that the thread for the bolts that hold the binding in the forward-centre-rear position on the mounting plate has stripped over time.
After a bit of googling I came across helicoil repair inserts for putting a new, stronger thread in place of where a thread has stripped out…
After a little messing around to get the inserts to slot in smoothly, it worked well, and now I’m all ready to go for this years ski adventures.