I have noticed with GPU coin you don't really need to use coin control to stake better. I've just left it and I stake 30+ stakes if not more daily with 100k coins and I've only ever used coin control once when I split them all into 10k blocks but since then I haven't touched them and like I said I stake daily. It might depend on how many coins you are staking. I plan to add another few hundred thousand more GPU in the next few weeks, just waiting to see what these forks will do.