The More Responses are out of the line now. They were the first generation of the More line. Prince is in the 3rd or 4th generation now and with each addition the gromet holes have been rounded open on the outside and inside of the frame (eg. NRG Graphite). I have logged at least 140 hours on my NRG Graphite with no breakage by the frame.
With at least 25-30 hours on my More Precision I've had no breakage either. Gotta hit it in the middle with these frames.
Don't give up on the More technology. It works! Just try a newer frame.