I know and from what I have read, I am not sure I like the idea of using imputation. I am very curious to see how my Living DNA test results come out since they were one of the first to use imputation. My Heritage also uses it and I have not been impressed at all with their results.
But either way, 23andMe is not my favorite DNA testing site as it is the least user friendly. You cannot easily compare your results with your matches because of the multiple types of privacy levels AND you have to be on the trusted list so to speak in order to see the full features of a match.
Ellen, are you in the DNA Project? Because if not, you need to be. You are very knowledgeable :-)