The procedure is pretty much the same as for everyday photography.
Remove the dust filter/IR block from the camera (a v simple procedure on the SD14) add lens & filter, select fluorescent WB & shoot adjusting EC aperture etc as required.
It's possible I might have tweaked the hue control sometimes in post processing but nothing drastic has been done.
The SD14 is old enough I've not bothered using it for normal photography or even B&W IR as I have converted cameras that do it better.
It should work fine for B&W IR if a suitable filter is added in front of the lens (with the dust protector removed)
If you were referring to skin tones in the aerochrome mode I've not done a lot of experimentation, a few test shots with my hand in the foreground and more readily to hand:
Here's another shot with the same set-up (with more IR in the lighting) which has a small amount of flesh visible
seafront garden aerochrome small by
Mike Kanssen, on Flickr
I don't know if it's enough to judge the tones using this for portraits but it's the best I have readily to hand & I'm late for work!
The X1 filter is unusual in that it reduces the IR passing through (by about half) most other green filters either block nearly all the IR or let most of it through. Most normal photography filters transmit lots of IR...