Shaft extension for ST1500SF string trimmer?

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Is there any way to extend the shaft length of the ST1500SF string trimmer? I've tried handle positions and shoulder straps and the bottom line is that at my height (6'4") I have to hunch over to properly use this trimmer. I'm taking care of multiple acres with trees, bushes, gardens, buildings, and fences and it's killing my back.

In the past I used a commercial string trimmer that had a shaft about 8" longer than this one and it was a snap to use standing upright, however I'm sold on the Ego line over gas, however I might have to go back to a gas trimmer to be able to get through my trimming without ending up with back issues.
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Scott Turner

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Posted 5 months ago

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William E Hanson

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You could purchase the power head with string trimmer attachment plus the extension attachment. However, the extension isn't adjustable and may be more awkward.
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Oregon Mike, Champion

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I wonder about a couple of things to try. I read recently about someone using a string trimmer one-handed. They rest the battery end of the ST under their elbow and use the one arm only.
Perhaps in tandem with that, the D handle could be moved back closer to the trigger? Not a true length adjustment, and would potentially affect the balance of the tool, but with resting the battery end under the elbow and having the D handle closer to the trigger might allow you to extend your tool hand a bit and then just have the handle hand to sort of steady the ST. 
Hoping all of that makes a bit of sense.
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Olivia Carrescia

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Very interesting. I am 5'4" and am having a lot of trouble with this Trimmer.  My arms and shoulders hurt after 10-15 minutes. I thought it was because I am too short!  Adjusted the handles but it didn't help.  Maybe it is something about the way it is designed.  I had the 1200 and really liked it but it died and they don't make it anymore.  I have found this good for high grass, but it does not work as a "trimmer." Can't judge where the edge is and I have been cutting off my flowers!
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Oregon Mike, Champion

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Olivia, you might try using a shoulder strap with your trimmer. Maybe it will help with fatigue and soreness. 
As far as judging edge, I find I can see the orange line EGO provides so I'm able to judge string length. Another thing I've noticed is the trimmer's sound changes as the string gets shorter and when I bump it out longer.