you can do this n shotokan too, you just have to remember to keep your body loose.

The more you work it, the faster you can turn it on.

do this when running kata, you'll be a bad S.O.B. pretty soon

sweeet

I'll come at it from a different angle. In your body's natural relaxed state you can feel tingling or vibrating sensations in whichever part of your body you focus on. You can also feel your pulse in the same way, again wherever you focus your attention. Most people are rarely that relaxed. If you practice relaxing and put your limbs in a position to maximise the blood/energy flow you will soon feel the vibration. As in Tai chi those positions are usually relaxed and consequently curved. The curvature allows more flow past the joints and the tendon cross-over areas. If you strike from such a relaxed position your attack should be harder and faster because of the lack of tension in the opposing (antagonist) muscles. This is very difficult if not impossible to do in the early stages of a confrontation because of the fight/flight response which tends to tense everything up and slow down response time. A good way to practice is to link relaxing with another trigger. I use my outbreath and practice relaxing each time I breath out. I still tense up at the start of a confrontation, but I find my recovery is improving with time.

Qi is the feeling that resides above the movements in the body.

Qi is related to the bio-electrical processes found in all working parts of the body.

Awareness is the key to qi.

The critical mind, the un-relaxed mind, and or the un-welcoming mind can diffuse the awareness feeling of qi.

Shaking sometimes refers to a blockage. When it resides, the qi flows.

Using qigong (3 circle standing meditation), has shown to help the qi flow. It takes about 6 months of 30 minutes a day to unblock the qi, and another 6 months to realize and or utilize it better in the things you do from day to day.

Take care, be wise, and ask questions. Eventually you will get an informed, rather than an unwarranted attack or unfounded guess, etc.

I have this vibrational feeling also at times when I focus on feeling it. When i'm i'm bed trying to go to sleep it gives me a falling feeling. Odd, but i'm glad to know i'm not the only one experiencing it.

Warming muscles will let them move further faster. Also, the movement will usually cause more blood flow which gives them more oxygen to burn. Try holding your breath for several seconds then jumping up and throwing your blows. Then, relax and breath deeply, tensing and then relaxing different muscle groups one at a time for a minute or so and try again.