Honestly man I wouldn't even bother with mining. In this day and age ROI is pretty shit and you're likely not to make anything by time you factor in electricity and whatnot. Mining isn't a game for consumers anymore but for large corporation that have centralized the BTC mining POW.
Honestly better just to buy BTC and invest them somewhere.
Curious, what is your idea of a sound BTC investment? Gambling or signature campaigns?
well signature campaign is not really an investment, of your money, you invest your time there which is another thing
so you can do signature while still investing in something with low risk, maybe some high altcoin like eth, which look not so volatile comapred to other
Joining a signature campaign is similar to freelancing or advertising. They cannot be considered as an investment.