pull down to refresh

I don't think you get a lot more out of this setup. If you want to upgrade your current setup you could do the following steps:
  1. Use an additional passhrase (if you don't already use one)
  2. Create a multisig wallet. There it could be useful to use multiple sources for keys.
Keep in mind that those steps complicate your setup and can also be a potential danger to loose your coins.