I am still not done removing them all. It is time consuming and tedious but not difficult. I have tried various methods and none seem to work much better than others. I think it depends on the condition of the decals. The worse they are, the more difficult to remove. For ones in good shape you can use a plastic razor blade (or metal putty knife if you are careful) and once you start them you peel off big chunks. But for the cracked up decals it is slower. I have used heat guns, chemicals, eraser wheels, etc. and they all take time. I think the metal putt knife with a heat gun was overall the best. I plan to work more this evening to finish it and if I have any more thoughts, I will let you know.