turning brake rotors

this is a little off topic as this regards my f250 but there is alot of experience in this qroup. any time i have done a disc brake job, i have always had the rotors turned without question. however, i am about to do my f250 and the rotors look really, really good, no scoring, no flaws, no nothing . so if they are running true, my question is this: do they need to be turned. thanks in advance,

were ur brakes pulsating at all b4 ?
peddle pulsing or wheel shake during brake?
if not leave em alone--if so they are warped- turn them
g/l

they are not warped as far as i can feel but i have not run an indicator on them yet. my concern is will the pads seat with the existing glazing on the rotors from the existing pads - just like i dont like to put on new clutch on an unground flywheel.

I got a little tip from a mechanic a while back and always do it now
on every brake job--I sand the rotors surface lighty on both sides
in an circular pattern a d\a works well --this leaves a nice smooth clean surface--I ve also found it help full to lightly sand the pads lightly perpindicular not across-b4 install. This step seams to help eliminate premature grooving and uneven wear
just my 2cents
g/l