"until the 55.60 resistance was broken just after 10:30."
"resistance"?
"this did not herald the begining of an up turn up "
actually it rose to 55.58, 43c above the previous low - look how it actually rose to previous support - exactly - before heading south again - a classic support turning into resistance
"the price continued to slide down to 54.80".
price fell to 54.59 (ok so I'm being pedantic ;-))
So, Gerard, imho, the first "false" signal wasn't, as although the indication was that sellers were indeed drying up, it does NOT follow that buyers will pile in; it becomes, as I said, perhaps 50/50.
A good way of looking at this is to consider an object falling to a hard surface. Unless you know the nature of the object, you cannot judge whether it will bounce or stay still. That's why I exited half.
Your second "false" signal wasn't either, imho, as it bounced a considerable distance; it simply then demonstrated a rubber ball like nature, bounced and fell.
May I suggest that you do not look so much for "signals" as for pieces in an ever changing puzzle where you can integrate all into a more coherent and understandable picture. This means you must not "expect" an effect from what you deem to be a cause, merely an unfolding dynamic scenario.
Only then can you even start to understand how markets work.
Now there are certain elements that enable me to read those evolving influences with a substantially high degree of probability, but I will not discuss those publicly, they are reserved.
You cannot impose order on markets with simple rules, you can only understand and trade accordingly.
I sympathise with your hard right edge problem and agree that often you will see what you think are false signals with volume - and yes they most certainly happen, but those elements I alluded to act as an efficient filter and reduce the number of false positives/false negatives to a minimum. For the occasions when the market does behave contrarily, and that is far, far less often than most people believe, stops protect you well. Although I will usually exit a trade long before a stop is hit if those elements tell me the market is going tjhe wrong way rather than just wiggling.
Sorry to be so long in this answer, but I've had half a bottle of Chardonnay and want to be absolutely sure I'm expressing what I mean ;-)
I hope you find the above helpful, Gerard.
Back to the wine..............
Richard