BACKHAND TRIMMING
Ok, so I'll cover things a little quicker in this section as much of what holds true with backhand trimming is the same as with your forehand.
However there are a few key differences that you need to be aware of.
THE DIFFICULTIES OF BACKHAND TRIMMING?
Trimming on your backhand is harder than your forehand for a couple of reasons:
Both of these factors add up to making backhand surfing considerably harder than surfing on your forehand.
QUICK BREAKDOWN
Lets break the whole process down in detail below:

QUICK TIP: THE GRAB RAIL
If you're struggling to execute this technique, a quick little hack to put you on the right track is to use the grab rail technique.
The method is quite simple, but very effective:
WRAPPING IT UP
If you're like the majority of people, chances are you'll find trimming on your backhand more difficult than your forehand.
Regardless, we really encourage you to not see that as a signal to avoid riding waves on your backhand, sticking just to riding waves on your forehand.
Instead, try to practice riding waves both ways and take the time to develop the skills to ride both successfully as it'll pay off big time down the track.