None of the cars had any running issues but felt noticeably smoother after the change, just took ours out this morning and again gaps all well over what it should be this, after 36k miles.
Bah, why do you have to be soooo far away, I'd run it in tomorrow if you were round the corner. Will see what the local muppets quote me for having it done, otherwise I'll leave it for the next service where Dan Perkins generally do good prices
takes no more than one hour to do.