TOTALLY agree on stopping the constant readings. Not only is it a big money drain and very addicting, I do believe it does slow down progress. Look at the end of the day, either it will happen or it won't. what's meant to be and all that lol.
just stick with a one or a few that you really like ..... and call for updates periodically. I have also noticed that the more readings you get with the same person, the less accurate they become. Just a personal observation.