Art:
Actually, you will notice some difference, especially breakout force. The QA attachment moves the bucket farther forward of the pivot pin, reducing the leverage exerted by the hydraulic cylinders. All aspects of loader operation will be reduced somewhat, except for overall height. The most noticeable decreases will be in breakout and curl.
As Rat stated in a previous post (read previous post from Rat), the bucket is moved 6" farther forward. I have not actually measured it, I will take his measurement as fact. The QA option coupled with the 4 way control valve could make for some interesting combinations on the loader arms, like a power angling plow or a hydraulic post hole digger!!