A 5 string can do anything a 4 string does. So what's the advantage of switching between 2 basses over always playing with a 5 string (leaving the tuning issues aside) ? The only advantages I see is that on a 4 string the neck is thinner and that its string spacing allows for more comfortable slapping. I'm asking because I can't decide between buying a 4 or a 5. I'm actually playing with a budget 5 (cort action 5), and want to buy a better bass. I do use the 5th string, but I wonder if the comfort of playing on a 4 is really worth it or not. What's your opinion ?