Chris, you can "fix" the powder issue with a different spring. I am not a fan of the person doing the indexing because with all that is going on it might be easier to double charge or make other type mistakes. Not saying its not a good set up just like it for the speed. I did consider the 550 but I wanted to reloaded that would be as efficient as possible.
don't mean to start any reloading wars...just wanted to jump in
