Mandrake7062: Well, you shouldn't really have to add cuts to make polygon selections. Most time I complete a sub assembly and make as many polygon selections that I think will be needed for UV mapping in Bodypaint. ie: each of the Eagle side pods has over 50 polygon selection tags. Time used making them is more than offset when UV mapping.

This aircraft tutorial by Bazze is great for anyone wishing to get the basics of Bodypaint - the only thing missing is using the relax tool (when required) but that's easy enough to get the hang of.