I think it is more profitable if I combine the two of it since I can work with them simultaneously. Signature campaigns is profitable specially if you are a higher rank, you can generate tokens without putting any money. If I will gain a lot in signature campaigns, I will trade them in an exchange and I think that will be the time that I will start to trade my tokens. In my observation, all signature participants can also be called as traders because at the end of period they received tokens and trade it into different exchanges.