Used the ht131 and ht75 for many hours, when I bought my own I went for the ht75 as it is a simple reliable 2 stroke and I was hearing of issues with the new valved stihls, nice power when they worked though. In Oz the shaft is around $600 and it's very easy to bend at full stretch. We've got got almost a dozen at work, mostly ht131 though I asked for a 75, they're slightly lighter too. We also have an echo extending 2t pruner, what an absolute pile of junk, runs like a bag of crap, is so anti-ergonomic its painful, horrid horrid machine, it will not die though, its been run over by a truck twice so the fiberglass shaft is a mass of splinters held together with tape, it's also been bent when someone jack knifed the chipper it was on but it still works, shame, the boss won't bin it till it dies