Bob, which iPad hardware are you using? Mine's a gen 3 (right before they went with the lightning connector).
I have an identical experience on my 3rd gen iPad.
Gen 4 - first one that lightning hit! I believe everything else is pretty much the same. I must have iPad ready fingers (good pads for the iPad). I did have to practice a bit - that double click thing.
Bob, when you horizontal scroll channels how long does it take before all the settings register?
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