I'm starting to think all this "change" is not so good of an idea.
This should kill trading in small caps.
The only thing that bugs me about trading right now is really just the MM's being able to sell in fractions of a cent on the 1 Dollar+ stocks but I only can buy and sell in whole numbers. The upside to this is it makes it easier if you are trying to judge volume being actual retail buyers /sellers or volume is being manufactured by mm's. Also pre/post market sales. Once you get above 5 USD you should be getting spreads on the bid/ask so that this is not importiant. I am used to seeing penny incraments. Maybe a nickel incrament is ok for over 10 USD and a dime for over 20 USD