Major being that the SOS in an accumulation, moving into Mark up, needs to not just break out of the trading range but also exceed any previous upward moves out of it like prior upthrusts etc, or if in distribution exceed any previous SOW or moves below the TR before Back up to Creek/Ice as confirmation.
This is my understanding anyway and as I'm still learning I'm more than happy to be corrected. I'm sure I'll be looking back in another couple of years and having a chuckle at some of my older charts, all good
