So I have been using my headphones as until today, I had not been able to get to our drummers to grab my powered wedge.

I am using an Alto TS110A that I had been running with my RP1000. I am considering moving up to the Alto 12" or 15" instead for better low end response but we shall see. These seem to be a great "bang for the buck".

What I am wondering is first, should I get 2 wedges to take advantage of the stereo effects? I am using the 11R for a FOH rig and I'm not sure how keen sound guys will be to give me 2 inputs on the board. Second, how much benefit am I going to get going from a 10" speaker to a 12 or 15?

I have also been considering the Tech 21 Power Engine 60's.