DP is for some a money and time saver, helps you cut corners to make a larger profit. I think the proof is in the work or the end result. Tanning of hides has been around for as long as man, ill stick with it. What was used in all the natural history collections like the Smithsonian or Carnegie ? DP, foam manikins, premixed colors of paint, has turned a artform into a hobby or craft that requires vary little skill or talent anymore. Like the " Last Supper" the skill needed to do that, a master a Pro. Then you have a paint by numbers "kit" looks good to most, your so...… good and talented said grandma when you gave it to her for her B Day. Do they plug or patch tiers they use in NASCAR, bet Bubba could get it dun. I plug and patch my tiers on my rider mower and would only go it as an emergency repair on a car. DP a temporary fix to a permanent problem (slippage, bugs and rot).