I am gonna experiment with another rub for sure. I am learning from people here about UDS temps at different zones and I am thinking that when my thermometer was running in the 320-335 range the center temp was about 50 degrees higher according to a member here. That put at least part of my smoking time in the 375 on up range. So I quite possible had too sugary of a rub (I did rub it on generously shake n bake style) combined with too much heat. I will make sure I remember to ad 50 degrees to my thermometer next time for everything I smoke. I now learn that all the ribs I have done have probably been around 300 instead of 225-250. I bet armed with this knowledge now I can get my ribs to fall off the bone more by adding a couple more hours cooking time. Wish I had known this sooner lol.
While all the rubs mentioned in this thread sound very yummy I got to be carefull of the saltiness of them because my favorite injection is plenty of garlic and salt. I don't want to get them too salty.