Idk know what the item you are looking at for sale is, but basically the Baluga Whale Theorem tells
you should really evaluate at how strong your one pair hand is when you are raised on the turn
If you are looking to purchase the item for what ever more it contains, fine. But do not pay $1000, for what you can EASILY find on the net for free. Maybe turn your browser off of shopping?
***And do some searching for it, there is a lot of information about it out there with a lot of examples that you can study. Google is your friend (or Bing if you truely must )