John,

For me, I apply a thin layer (it doesn't need to be thick since it is applied on my entire scalp). I press down so all the lace touches G2BG. Then, I brush my teeth while it sets (usually 3-4 minutes). After this time it's still not going to set (for me). I end up blow drying (from top down, so I don't blow the lace up). After about 1-2 minutes of blow drying, the lace is set and I can comb the hair up.

Note: I blow dried my hair on high heat. I've done this since I first wore hair. Some people are sensitive to this action, I'm not =). I don't have experience waiting for it to set on its own, so I can't tell you. But with blow drying, it dries almost immediately. I comb around, while blow drying (being careful not to comb up at the hairline right away. I comb up only after I know the glue has dried).

Hope this helps a bit!

Leamon