hey I got a little exp...... $|-|iT lods of soapy spray soloution or window washer fluid..... gallons already prep'd in spray bottles... when the tints are wet with the soapy soloution, it moves! constant spraying and slicing of your tool kit with patience....... At one time I actually moved an entire peice as a demonstration aim at a friend (it slid right off the glass).... if its wet you can work with it... but hell wet it again, it'll be easier on you, patience but work fast! try it gluck! practice.... and dont forget about the individulas interror, you dont want to drown their rugs :-}!!!