
Add a fire steel to your Synergy
I've seen people speculate about 3D printing stuff for the synergy gaps. Well you can get a fire steel in there nice and neat and snug with much less effort.
Take one of the tortoise gear mini firesteels that victorinox now sell and cut it with wire cutters e.g. on pliers to roughly the right shape (the large gap on the back side is best)
Then wrap it in cling film. This is key as you can trial and error just the right number of layers for a snug fit.
This one now just sits there, never slips out, causes no fuss.
Also the same brand waxy tinder can easily be remoulded and stuffed under the scissors or the knife, there's lots of space. So you have a full emergency fire kit.
Woop.