the thing with not bouncing is that if you were to try and attack not bouncing it would be possible to foresee that attack, as it is a sudden movement from stationary. also through bouncing, if you choose forwards and backwards, you could maybe time your attacks to when you are moving forawrds and so mix it with you bouncing so it is harder to see. it is also harder to feign when not bouncing as are moving around slower, there is less muscle tension than when you are active, so your movements should be slower due to less momentum but it also depends on which type of muscle fibres you choosen to hone, fast twitch muscles fibres are better at moving from statinary and other ppl are better at other movements