Shrinkwrapping clothing..?

I’m trying to use Shrinkwrap to project clothing onto a character model. For a test, I’ve been using a cylinder with uncapped ends, subdivided a few times. The problem is, with the modifier applied, a few stray vertices are always attracted to the arms (which are at a 45 degree angle, rather than a T-pose).

The Shrinkwrap settings are: Offset: .05, Projection, Normal, SS Levels: 2, Negative. The cylinder is 112 quads.

Is there any way to influence the modifier so this doesn’t happen? I tried the VGroup field, but it influences the ‘wrap’ mesh rather than the character mesh (which I think would be at least equally helpful).