Where there are pulls, there are slaps
Translation...
When students start working on pulls (found on the upbeat), they forget to slap their other notes (found on the downbeat). This sounds strange... don't do this. The main reason why we tongue block is to use the slap technique, so make it your default... you should have a reason why you're not slapping. Next, when using other techniques, like the pull, don't forget to record yourself and listen back so you can make sure you're not forgetting to use your other techniques, like slaps, dips, flutters, tremolo/vibrato and dynamics.
P.S., Friday got busy, this is a makeup tip for Friday :-)