Gee Elven, we need to get you updated with a proper string head.

Like you, I hate re-spooling those coil string heads and will never-ever go back to them. And more important that .155 thick string can cut serious weeds and tree shoots. Bad thing is they'll shoot rocks like bullets and can damage house parts. My spouse knocked the glass out of a our truck that was parked near by. Seen below is a string bundles we go into the field with and we can change out strings, in less than 60 seconds. We use a line-men pliers to do that.
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