Be aware that the hedge trimmer attachment is a bit on the heavy side. It is probably the heaviest of the Quik-Lok attachments. But.. I just go slow and take a few breaks as there is nothing else that will allow me to reach these weeds.
I have some weeds on the top of a steep ridge along my driveway that have never been trimmed because nothing can reach them and the bank is too steep to stand on. I'm waiting for the pole extension to become available as that will allow me to get right in there and cut them down.