PROS - I loved the instructional PDF.
Also liked how one arrives at the prediction.
CON -
Reason why I gave it 3 stars, is due to the fact that this is overpriced. It's a $10 dollar trick.
No expenses to justify a higher price, no props, no postage, etc. Yes I understand we pay for the
secret; be that as it may, it's still a cute ten dollar trick.