“I am choosing not to do J&J today not because I had any problems with J&J, in fact it went beautifully, but to make the point about the opportunity to mix and match,”
As Sarah Palin and/or Dr Phil would say, “How’s that working out for you?”
I mixed and matched my two Moderna shots with one Pfizer booster. I did not feel a thing except a little soreness at the injection site on my arm. So to answer the question. It worked out great for me. It may not work out as well for others I am sorry to say.