Has anyone every played 5's for years and then switched back to a 4. I've found myself in a position either physical or mental to where I've played 5's for years and even started out on a 5'er but every time I pick up a 4 its like my technique improves 10 times over . It seems like my speed improves, but I'm not sure if its just in my head. I've played for 12 years exclusively on 5's. Any thoughts on my "condition" and should I make a "downward" transition to a 4?