You do have one other option and that's using magnets to modify either the shape of the body part or the clothing item to fix poke-through. When you create a magnet, you can adjust the size and location of the Mag Zone to affect a more specific area on the body part you wish to modify.

However, if you need the magnet's effect to be vey highly localized, very specific (applied to specific polygons on the body part of the figure/clothing item instead of the body part as a whole), you need to create a new group for that body part using the Grouping tool and select the polygons you wish to be in that new group.

Then, you create a magnet and under the properties for that new magnet's Mag Zone, select the group you just created as the area you want to affect.

Another tip about magnets: you can change the display style of the various elements of the magnet (the magnet itself, the mag base, mag zones) in the same way you can change the display style of figures, props etc. That is, the Element Styles can be applied to them too. E.g. for better visibility, you could change the magnet to Outline mode. Or to get a better idea of area of effect of a Mag Zone, you could change it to display in Wireframe mode. etc...

If you're not familiar with magnets, there are some tutorials available via Renderosity's Tutorial section that can help you out.

nukem