Something I never understood is the notion that playing with certain types of yoyo’s can form bad habits. One example I can think of is that an extra wide yoyo can make a player sloppy at landing on the string. Another example would be saying that an undersized yoyo will make chop stick tricks too easy, or that you shouldn’t practice finger spins with a dimple in the cup because it just does it for you.
I don’t think I’ve heard this on these forums specifically, but I have heard people say things to the effect of “When you’re learning X trick, you should learn it on a yoyo that doesn’t make it so easy, because you’ll be better when you finally do learn it.”
These types of suggestions never made sense to me. In my mind, when you’re learning a new trick, the last thing you should be doing is making it harder than it should be. From a productivity standpoint, I think it makes far more sense to get the mechanics down first, sloppy or not, and then refine your technique. It’s like riding a bike, we all use training wheels before popping a wheelie.