I reckon the Homelite half cranks are are china's major revenge - worst trimmers I have ever had the displeasure of using. Run as rough as hell, gutless and just plain annoying to use. I had about 4 of them, ended up putting them for $40.
Again, I got idiots who offered $10, ended up selling to people for $35.
Not worth my time or effort - especially having to explain what a 2 stroke is.
So I have 1 left in the shed - and hate gumtree as much as you do
I like the TM251 as they are so nice and light - relatively gutless but run pretty smooth
Pretty sure they are made in mexico