Rating: 2
Not a bad tip, good job for finding this out for yourself but it's not too useful and most designers know about it already. The same trick has been used in other scenarios with both fish and sharks although 200 is a bit extreme, I would use 30 at the most. 200 would lag a lot.
The guide was very brief and not well formated. I would suggest expanding to it by adding a screenshot of the result.
Additional Comments:
Good job nevertheless, it's nothing new but it is always nice to experiment and find stuff out for oneself. :-)