Personally I always had a cheeky look at the GPS track (on the top of the PFD - there is no way to remove this for a test) and made sure it was about half way between the heading and the reciprocal to the inbound.
It's a good gross error check to make sure you've got roughly enough drift on, and for making sure you haven't accidentally put the drift on the wrong side but not much use for anything else in the hold.
It's also good for cross checking your inbound heading on a non-precision approach, and for VFR navigation but I'll leave it there before the map and compass brigade storm in!