IREADEM: If you have a foam wig head you can pin the piece down good and with a comb shape up the top any way you want. When I see guys with cool clipper cuts they don't have the "buzz cut" (all same length) but rather the crown seems trimmed tighter than the front which seems to look better a little longer. One problem I find with these short cuts is you can identify every flaw ov ventilation. You can see and usually have to use a good texture gel on hairs that are (unfortunately) vented backwards or uprards instead of down and out like what is required for a tight natural short style.

ROD: an inch of glue is nothing. I use a 1/4 wide art brush (one that costs $4 not 59cents as the cheap ones lose bristles and the good ones last forever) and paint on 3 coats and a tiny bottle of basebond will last 2 years and I change ever5-6 days.