I have been conducting further testing and have updated my earlier post. I will continue to update as I conduct more tests and I add additional headsets to the test. Thank you to all of you that are contributing, especially with other phones as I only have the two mentioned. With enough cooperation we can at least identify the strengths and weaknesses of each headset and help people make an informed buying decision as to what is likely to work best for them. I will be adding a subjective grading scale to each of the factors I listed above to my reviews as time progresses.