Do all the 5.0L guys have the latest update from Ford? I do feel an ever so slight shudder when I'm close to shift points, but thats it. Having come from an Ecoboost condensation shudder, this feeling isn't 1/10th as noticeable. Having said that, I also feel some Ecoboost owners are feeling this same shudder and blaming it on the engine when it it just the programming/transmission/torque converter shudder than is felt across all the engines.
Like you said Longjt, if you have a 5.0L and THINK you have the shudder, get into an Ecoboost with the condensation problem and you'll quickly realize its not the same. But obviously if you're a 5.0L owner and have engine misfires showing, I''m sure the feeling would be similar to the Ecoboost engine misfires and would be related to some physical component in your powertrain.