No brand is without faults and minor issues on models. My experience with a 550xp is from a stock saw that performs better than any 50cc I've ever run. If they are running as intended, they are a mighty fine saw. Understanding a models flaws and having the knowledge to deal with them is the key. I have two ms261's, one is ported but both have a few hours and I neglected my 550 as it would roll over when I sat it down.lol But after getting used to a husky in my hands its hard to say a bad word about my 550, they a small, lightning fast and just what you want in a 50cc saw. Factory double spike and a hd2 style filter would make the great saw better.
