I certainly think that your experiment has value - my apologies if it came across any other way. - If nothing else, it shows that there is a difference, and th

I certainly think that your experiment has value - my apologies if it came across any other way. - If nothing else, it shows that there is a difference, and the day you pick for your newsletter matters. - It seems that it would be helpful for other people to repeat your experiment (but stretch it to 7 days) to see what the results are for their readers. - The difference between the open rate and engagement rate is quite interesting.