Quote from tobbe:
Not only that - it is depends on the quality of your feed as well (more about that here). The INDU is calculated/distributed every 2 seconds (as specified here). If you have a feed that throttles INDU ticks when there's a high load - like esignal - you'll be out of sync for 2-4-more seconds at a time and never know about it (which means you'll get false signals).
My guess is that it would be better to calculate the INDU yourself without delay (whenever a new tick from one of the INDU components arrive) and use that to calculate str/squ. And you need a high quality feed, too.

