Here's a quick grappling strategy for you. Have a "plan B" or alternate move in mind in case the grappling move you're using fails. Without an alternate plan, you could exhaust yourself trying to get the tap. Or, you have to just let go and basically start all over.
Let's take the guillotine choke for example. Ever find yourself unable to complete them?
If it seems like your opponents are often able to just hold on until you fatigue, read on...
First, keep in mind a basic principle in fighting... you CAN'T afford to get fatigued before your opponent. It's a HUGE disadvantage if you tire out first.
So, rather than just squeezing until you're out of gas, have a couple "Plan B's" ready to go.
Here are some simple ones to use once you realize you're not going to get the tap...
#1 - throw your leg over the opponent's arm he's using to defend against the guillotine. Voil, the triangle choke's right there.
Even easier is...
#2 - go right from the guillotine to a kimura. You'll find his arm is pretty unprotected and available for you.
There are plenty more tactics available, but the idea here is to have your "alternatives" beforehand, so you can hit that plan b without missing a beat.
You can practice mastery using a grappling dummy which will greatly improve the proper execution of your alternate move.
It is also a good idea to have a live partner that you can properly train with.
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