One issue I've been having for a long time is having all my toons use interact with target, including my current master. I've been meaning to change it for months, and I finally did after watching the video above. Having my master spamming interact with target was causing sticky targeting on an old target when I wanted to switch to a new one. That was causing me to have difficulty closing gaps.

In general, they're not bad at closing gaps as many of their abilities are actually ranged. I haven't incorporated their sprint yet, either.