I upgraded to the Pro version in 2016. I have paid for my update many times over with the Trailing Alert feature.
I set the alert for 7%. On 10/11/2018 it went off. I got out until 1/03/2019 when I got the signal to get back in.
The money I have saved and made more than paid for my upgrade.
Thank you very much for a really great product.
Gary