Playing inside the cue ball.
Playing inside the cue ball does not mean a stun stroke, punch stroke, or a flat hit; it is 100% totally not even close.
For some reason there are many that don't understand the concept.
Most times you don't have to use extreme to acquire a little or a lot of spin.
Grip pressure, wrist action and other factors come into play. It's not that difficult at all but I see many people making it difficult.
Playing inside is a simplified way to strike, with the proper stroke technique you can throw 1/4 1/2 3/4 full tip system to the side and measure it in eyelashes. I cringe when I hear 1/4 tip.
You must also have to strike as Efren did on his last shot with heavy right using extreme edges, use the entire cue ball, the complete player, yet staying inside as much as possible.
I will go out on a limb and say in the future many more players will be inside ball and low ball players, eyes are beginning to open.
Stroke Technique, it's not that difficult.
Sincerely: SS