I have two of these and love them <3. I've noticed that the 'newest' ones overhop on .20s with the lowest hop, .25 being the minimum. And I'm getting great range with .36s with them! Its great.
However, I've also noticed they've been getting lazy with the molding. The barrel is pretty much permanantly crooked to the right for some reason. Been trying to figure a way to straighten it out.