Dan, it's not a universal problem. After reading these reports and seeing George's video, I went back and checked mine. No troubles with surging at all on grades up to 8%. Obviously George's and Ted's do exhibit some level of trouble, so I'm not disputing the existence of the problem, just the prevalance of it. I have found on other models that a copious covering of a good, slick grease will at the very least mitigate the surging problem, and in some cases completely cure it.