Ideally you should also practice at least one "three-dimensional" burial with a beacon buried about a meter below the surface. This is both to provide some more challenging beacon searching in the final search phase, as well as to practice strategic shoveling.
Read this article:
The ABC's (and D) of Digging
... and also watch this educational video (although it doesn't actually become educational until around the 0:48 mark):
- read the user’s manual;
- practice putting on the harness with whatever clothing layers you would typically wear for a winter backcountry tour;
- load up your pack with probe, shovel, and all your other gear and clothing for a winter backcountry tour; and,
- practice unzipped clothing layers to reveal the beacon harness, removing the beacon from its harness, turning it from Transmit to Search, then finally removing your probe and shovel from your pack and assembling them.