Stihl BG-55, about $160. Bought mine five years ago and it sees [2] hours of use weekly. WIth vacuum conversion it is handy for getting leaves out of container plants; garage corners, etc.
As a note, I used their 2-stroke oil religiously, never keeping lawn equipment gas much more than 6-weeks. Always used some FP-60 in the regular gas and that was used to pour off into the 2-stroke mixture with the oil.
Moved this year to Corpus Christi where a friend of mine has had his own equipment service company for a dozen years. He gave me a couple of packets of Interlube OPTI-2 Universal 2-stroke oil, told me to use it exclusively.
I made the changeover and immediately I noticed that the power on the weedeater was better, but the blower dropped off by 30%. I figured, "well, different retail gas formulation between where I used to live and here; maybe some of that premix was older than I thought; and, okay, I've had it five years".
I went back to him after service to pick it up and asked what the problem was. Gummed jets? What?
No, the combustion chamber carbon deposits had broken loose and were clogging the exhaust at the spark arrestor. (!!!)
Then I remembered he'd told me 18 years ago when he was head of a city service department that he'd had to learn to look busy once he'd switched all the city 2-stroke engines over to this stuff, his work load had dropped so low.
So get some of this OPTI-2, as well. My 2-stroke stuff runs like new or better.
http://www.opti2-4.com/opti-2.htm