I think "constitutional reactionaries" would be more appropriate.
If you are a "reactionary" it intimates that you are reacting to the opponent.
If your opponent acts first you have lost the initiative.
I want to be the one that acts first and make them 'react' to me.
Admittedly, that is going to take a while to be able to do.
I still don't want to get into the mindset of 'reacting' when I should be initiating.