Let me tell you about the wind at Memphis...my 62oz. plane was like "swinging an anvil around on a hunk of kite string." After the squares, I did three laps, contemplated a "wave off." I pressed on...by the time the flight had ended, I had been pulled off balance three times. No matter where I placed the next maneuver, I couldn't stop the "windup." I was relieved when it was over, but learned allot about limitations.
Norm
BTW: Paul great slide show...Ryan, "keep the greasy side down."