Depends on what you mean by "adding the 95th percentile".   If you're only looking at 90 right now, and want to look at both 90 AND 95, then try this:

With any sizable number of instances to upgrade, where most are undergoing version upgrades, it may not actually make sense to use the same servers.   Servers acquired in the timeframe...

And how many records will it update, typically, for a given value of SMSID ?  Are your statistics up to date?

Now that I've looked more closely at your batch file, there's a number where I'd guess it doesn't belong.
What is the significance of the 53248 ?   It appears AFTER...

This problem has to do with Word, and I'm pretty sure it's NOT solvable.   Word can only have one header or footer, and NOT any kind of dynamic one save...

Are you just designing this setup, or is it something that already exists and needs a good update?   I ask because while getting a group is possible, relying on such...