I am quite the opposite. I like to get the amp sound in the room first and then setup the mic position. However I have a go to mic position that has never changed so I will set the mic, dial in the sound in the room and do fine adjustments to the amp settings and sometimes if I am feeling saucy I might adjust the mic a few millimeters but most of the time I just slap the mic up in the same position and never second guess it, then again I know my amp and cabinet and am that confident in getting tones right the first time.