How similar do the basses that you play have to be? Like do the necks on them have to feel similar in profile or do some of you have ones that are completely different? I assume different for those that play ones with more than 4 strings a lot. I know some people have to get used to a certain bass and then have trouble switching between them and not being able to play as well. I don't really seem to have this problem (not that I play that great anyways) unless the scale length changes. I suppose it might matter more to me if I was playing Jazz or something but for the rock (classic, alternative, hard, whatever) that I play, as long as it's set up decently I can use it. What are some of your thoughts/experiences with this?