I did notice the weight difference compared to alu version, but I don't mind since copper is supposed to be anti-bacterial. Noticed that the orange aux lights are dimmer than the red aux ones, which is good.
Glad to see the switch looks like it's also made of copper. For now I prefer it to be clip-free, and just pocket it.
I understand why people are requesting a Titanium version of the TS10. Not really a fan of Ti though, unless it's for my bicycle.
From what I read, you can let the ketchup sit a bit longer on the copper, to remove more of the oxidation. I hope it works great for you, @Ongar