When I hear this question asked (stick with one particular CCW piece or rotate among many) I always approach it from the standpoint of the 'relationship' analogy.
Your good ole' reliable soul-mate of whom is with you day in and day out like clockwork may become 'cumbersome, boring, irritating, uncomfortable (insert preferred adjective here)' at times tempting you beyond belief to 'trade-her in' for a different newer better-looking 'model.' Yet in most cases it's better to avoid those 'temptations' and just keep her and avoid the 'pitfalls' of the juggling act...
Course, YMMV.
