I have been on this forum for a long time, I tested both version 1.9 and version 2.1 on the demo, that is, I have something to compare with. Buying the PRO version was a completely conscious and thoughtful decision on my part. I hesitated for a long time to buy OPTI or PRO, but 6 pairs is not enough for me. All the same, when you have 26 assets in your work, the number and probability of profitable transactions increase. Practice proves it. My respect to the developer.