A couple days ago Doug Weil (aka DroptheRemote) of Clearly Resolved Image & Sound, Lion AV Consultants, performed an ISF calibration tune up on my Pioneer Elite PRO-111FD. I was surprised at how much my TV had drifted away from the initial calibration specs 15 months ago.
If anyone is unsure about whether a calibration tune up is necessary, I can testify that it is.
Good job Doug. I recommend him.