A good test of whether you truly understand a technique is teaching it (correctly) to someone.

To excel at jiu-jitsu, you need to know the how. Combined with good timing, you’ll be good. To excel at teaching, you have to learn the why. Because your students will not be you, you’ll have to know how to adjust techniques to make them work for them. Knowing the why is how you do that.

Teach your partners your favorite techniques. Teach them the counters. It will be frustrating at first, because they’ll know how to defend your best attacks or shut down your escapes, but if you take the long view, you should ultimately be able to see the benefits to sharing your secrets.