I've narrowed my choice of edgers down to the Stihl FC85 and the Redmax 2500S. I'd like to hear from someone who has either USED or preferably has OWNED both. The Sthil : Proven performer ,like the extra guide wheel right on the gear case. Has supposed no-clog design . Drawback, uses catalytic converter to meet EPA Regs. I also considered the Stihl FC110,,any input? Redmax : I love their engines. Strato-Charged engine meets EPA w/o cat-converter. Good fuel economy. Drawbacks: No guard wheel on gearcase. looks like it would be hard to control cut depth w/o it as opposed to Stihl. Don't know if it has a no-clog style guard?? Anyone who has used both please provide your input. Thanks!