I have always been searching for Crappie (aka as Calico) decals for our bass boat that is named Crappie Lander.  We figured this would be a perfect way to make our own custom images that would be unique and stand out since the boat is a glittery jet black.  After finding the perfect sized Crappie fish picture we wanted to use, we printed it on the included stencil paper.  Then I carefully cut out the image using anXacto Precision Knife.  I would say this was the most difficult part of the process since you have to be careful to cut the lines on the pattern.  If you have a complicated image with many turns and twists you may end up pulling your hair out.  The less complicated the image the better.After cutting the image out, you remove the cut out image and then apply the transfer film over the stencil (you end up with two sides with covered adhesives).  It is important the transfer film is larger than the stencil.  Remember that the image that you will be "etching" on is the open area on the stencil sheet, not the area you just cut out - that part you can just throw away.  Now we are ready to apply the image to our boat.  We peeled away the backing of the stencil liner and placed it on the boat.  Smoothed out the image to make sure there were no air bubbles and that the stencil was securely in place.  Remove the transfer film and use the included masking tape to protect the paint in case you go outside the stencil area.  We took the Trizact sanding disc and lightly went over the entire image.  I continuously checked our progress by using a moist detailing cloth to see how things were turning out.  If more sanding needed to do done, we just made sure the area was dry and sanded it some more.I clearly understand the concept of how 3M came up with this idea.  I reminds me of etched glass you see on fancy wine goblets.  I guess only about 10% of your clear coat is actually removed and if you decide you don't like how it looks the image can be easily removed with the3M Scratch Removal Systemand a buffer.  Was this "easy" and did I take less than 30 minutes...NO.  It was not difficult but if you want it to come out looking perfect, make sure to give yourself at least an hour and half.