Mike, when you say that you hauled a trailer and hammered the corners with no ill effects, my only thought is that you weren't hammering the corners "that" hard and/or that the corners simply weren't that tight.
You may be right and I just never found the edge, I do think the trailer and how the trailer is loaded will make a difference. I normally make a trip to Wellsboro PA each year with the wife, I do know some of the corners that had a suggested 35 mph speed I was going around at 55 - 60 which is pretty much my normal cruising speed on a lot of the 2 lane back roads.
FWIW there are some who hammer the Dragon on 2 wheels while pulling a trailer, guy claims he was running in the 70 mph range.
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