FST7 for calves before your workout. Of course if you wanna do FST7 after all your movements are done but are you going to do 4-5 movements for calves?
Why not before your leg workout when you're fresh hit the small muscles hard first with some jumping rope or incline running and then FST7 on calves only and then do your full leg workout. If you were to do FST7 on all leg muscles before your leg workout then yea, that's a little dumb, but I'm talking one movement, moderate to heavy weight on the smallest muscle of the leg. Trust me, you'll still be able to move maximal weight with every other muscle of your leg.
Ask me how I know.