Once Tiffany has boosted trade rates, you can get 80 protein on one planet move to a different one, sell for huge profit, then take titanium back so you're making consistent thousands upon thousands every day due to the difference between what you bought it for and what you sold it for.Strange, my experience with salvage vs trade has been the exact opposite. I don't ever bother doing regular trading (unless it's required for the plot) after I get the scanner. And my profits jump through the roof, even compared to Tiffany's boosted trade rates.
I found trading far more profitable than the salvaging.