I'm completely unfamiliar with Yellowhead, so I can't say anything on their quality, or lack thereof. I have, however, used decals almost twenty years old and they worked fine. I have also had newer ones turn to itsy bitsy slivers. One experiment I tried on some old (15 yrs+) Monogram decals (two identical sets from two identical kits of equal age) was coat specific images from one set with Microscale decal coating, the other images on that sheet and the entire other sheet left original. I let the coating sit for two days, then dippped the same decal image from both sets in water. The original fell apart virtually instantly, the coated image worked like brand new. Other images from the coating test sheet were tried uncoated, and they also went to pieces. So I'm now a firm believer in the Microscale coating. I haven't tried Future yet, but I will one of these days just for grins. It's a whole lot cheaper than the Microscale coating, so if it works as well.... If it doesn't, so be it, I'll buy the Microscale.