In the CRJ the best technique is to use the Range To Altitude Selected, ie the magenta banana.
Approaching a fix, first set the top altitude (the at or below), verify the banana is at or before the fix. Then set the bottom altitude and verify the banana is at or after the fix. Adjust VS as needed.
Approaching the fix, and comfortable that you have it made, set the top altitude for the next fix. Repeat the process.
This way you can descend continuously in VS, with minor adjustments as needed, and have a clear visual depiction of where you stand relative to each restriction.
The more advanced technique (still precise but less visual) is to monitor the direct intercept page. This displays a VS to make each restriction, but it only displays the top alt if there are two restrictions at a fix. If you use the depicted VS or slightly more (basically cross pretty much at or slightly below the top alt) you'll also make the bottom altitude. This has the advantage that you can scoll down to see ALL the fixes and the VS required to make one. The early fixes might require 1000-ish fpm, but the final fix or two might need 2700 fpm, so this gives a heads up well before you get there. The banana won't tell you that until you set the altitude for the fix in question.
I don't use the snowflake for STARs, only for descent planning on visual approaches.