Hi!

I know this site (http://www.yesbowling.com/?hop=bubby856) for a long time, took the "mini course" (email), and I've been tempted to buy the book, but not sure about the content, I'm seeing now that you can buy the eBook so it would be easy to get...

I'm a average player, really likes sport conditions usually 190 average on SC... what do you think of this book?, is it useful? is it good?, any comments?

Thanks in advance!