Posted 1/7/2016 1:12 PM (GMT -5)
Tedswife, if you will copy and paste my long winded journey from my signature you will find my experience. The mapping was done during the "volume study" which, honestly, was the most unpleasant part of the whole process. I recommend a mild sedative rather than doing it cold -- not that it was really painful, simply not at all fun.
Jim