The best advice is to put it on thick. I use 4 heavy coats of lm, letting it dry naturally between coats. I do not like to rush it by blow drying it, it can cause it to not dry properly. It will take quite a few hours for each coat of lm to dry thoroughly. Then when you are cutting out your design use a lot of fresh exacto blades. As soon as it starts to pull the mask rather than cut it, replace the blade. Save the blades though, they will be fine for many other uses since you will only be using the very tip of the blade while cuting out the mask.