If they mostly work then all good, only need to get you as far as the next shop for another back up. I realise for you that might be a few hundred miles more than me but schwalbe claim they're better than butyl and as I'm basically not using them anyway that's enough for me.
If they mostly work then all good, only need to get you as far as the next shop for another back up. I realise for you that might be a few hundred miles more than me but schwalbe claim they're better than butyl and as I'm basically not using them anyway that's enough for me.