In answer to your questions:
I rarely look at my block trade indicator these days. I do believe it is a great and useful tool for short-term trading. I did watch my block trader for a bit, but found it became distracting from watching the patterns.
If you are looking for continuous block trade flow I would recommend Schwab’s block trade indicator if you live in the U.S. Outside of the U.S. you can subscribe to The Stock Whisperer with Stefanie Kammerman as her trading room has a continuous block trade indicator.
I simply trade patterns.