Echo has a system called Poweer Attachment Series, I'm sure most of you have heard of it. Does anyone use this system? I have a few hedges that are a pain to do with a ladder and there seems there is always a need for the power pruner. If there are those of you that use it, what are your opinions ? I've heard that when they first came out, they had a few flaws but since then have work the kinks out.