Tick chart for QQQQ's

I wonder what size ticks people using for active high volume shares.

I am using 512-tick for QQQQ but not sure if it's a good 1 minute chart measure.

?
 
today aapl, GOOG, RIMM, AMZN are trading almost flat which i think is a bad sign.. Nasdaq is up 38 pts and AAPL is up only $2. GOOG is up only $5..
 
Quote from gobar:

today aapl, GOOG, RIMM, AMZN are trading almost flat which i think is a bad sign.. Nasdaq is up 38 pts and AAPL is up only $2. GOOG is up only $5..
how is that related to tick timing?
 
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