So, you've got your hawk up, but it sadly has gaps in it. So you run your comb through the gap, and it goes flop right? If you are using hairspray of anytype, just hold the flopping part, and spray a bit just a bit near the base and even less near the top and then hair dry it, the hawk should be held up. That is all provided your using hair spray and not gel.
A lot of the time after having mine up for a few days I brush though it. (Of course this isn't good for the health...but whatever) Then it practically stands up on its own, then I just use a little hairspray and sort of "re-do" it and it never has gaps then.
in my experience, the longer the hawk and the more unhealthy the hair the more gaps youre gonna end up with in the end..
i usually dont care enough to spend ages trying to fix them..just too much of a pain in the ass