A while back I posted about repairing wobbly Nomics with a second rivet. I've now done several routes with mine and thought I'd post an update.
The one I was using was initially repaired by leaving the original rivet in and adding a second. Unfortunately this started to wobble again after just two routes. I drilled out both rivets, packed the shaft/head with araldite and put in two new rivets.
I've now done 6 routes with this (all snowed up rock so it's had plenty of abuse) and there's no sign of movement. Still keeping a close eye on it but early indications are good that it's a long term fix. I found rivets hard to get hold of and as a result now have a box of 200 so if anyone wants to try the same let me know and I'll post you a couple.