Hey, any of you guys demo'ed Shindaiwa's new speedfeeder grass trimmer head? I started playing around with this one, which I got from my dealer. I will find out how it works on Saturday, but I can see a few problems with this already.. 1) It takes me a few secs to get the trimmer line from one eyelet to the exit the other, because it gets tangled up in the head. 2) I can see parts breaking, lol.. But I like this idea, if it works out great I will be getting 3 more..