I agree with Blue and Sounds like your pretty prepared already
One thing I do now is I show the glider the clippers, let them smell them, touch them lick whatever.... before I start clipping so they know what I'm about to use on them. For me it helps the ones that don't like their nails being clipped so much. Like Blue said be calm and confident and if you can't do them all in one sitting that is just fine.
If the glider starts showing signs of stress just stop for the time being
If there are certain nails getting stuck try clip those first so the problem nails aren't being left till the next round of trimming.