For me, I tend to set up off my strikes. Mainly my hands. Too many guys tend to shoot without setting it up, especially pure BJJ guys. Good standup gives you alot more opportunity. A set up I use at times is to shoot when the other rushes in with a big shot after throwing a shot. Alot of guys will move straight back when someone throws strikes at them. If you can stand your ground and make the first strike miss, often times you can shoot when they move forward for the next strike.
You can also shoot off of your own strike as well. If a guy moves straight back, throw a jab while moving forward to keep the distance close and shoot off that jab.
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