One key thing in using the Super Trim Adhesive is to coat both surfaces, lightly but completely, and then let them tack up for maybe 5-10 min. (then make sure you get the alignment right or have room to trim) and then put the two sirfaces together.
Either way will work well. Let us know how it goes Drew... So Bjorn hasn't seen your car yet huh? One of these days...
Good luck Steve, let us know what you decide, and how it goes.