The curved body panels is where proper technique comes in the most. With proper technique you can keep the bp rotating on any machine. PC is getting a bad rep here b/c people are unwilling to actually learn how to use the machine properly. It's getting a little old hearing people complain about products/machines just because they don't want to take the time to learn how to use them properly.Most of the time I would agree, but when you get to body panels with odd shapes/curves/contours the extra power helps keep the pad rotating. Of course a Flex would also fix that issues but it's $300 plus.