You could try a lycra sleezy hood, though some will rub with one on. I feel you, my oldest stud's mane goes 2 directions and will always, he was in a stud fight as a youngster and the other stud bit clean through the crest on his neck so his mane is permanently seperated. When I was showing him a lot I banded him but it took a lot of good gel & hairspray!
Another thought, since he is an Appy (with a very cute butt btw) you could roach it. Posted via Mobile Device
The owner of the stallion I had my mare bred to several years ago used the "lycra sleezy hoods" on her colts and fillys to help their manes lay down flat. Those proved to be excessively heat conductive since the fabric does not breathe. There are "mane tamers" available from several sources. For the most part they are a closely woven mesh with several different methods of closures from velcro to ties to elastic.
MTA: Just saw Kitten_Val's post. I had another thought on maybe helping a mane to lay down if hoods, braiding doesn't help make a mane lay flat. On the sides of the neck your horse's mane does not lay flat use a thinning comb on the underside of the mane that sticks up. Removing that underside mane hair will lighten the load of the topside of the "cow lick". Just a thought.
You can either braid the mane or put ruber bands on the very top part of the mane, this will weigh the mane down.
Does this horse have a thick mane?
If so you can always have a double mane, for some horses double manes look better than one sided manes.
Nah his mane isn't very thick, so I wouldn't pull it.. he'd have non left, haha :P also I have no experience with pulling manes I don't want to make a mess, I conditioned it yesterday.. I think its just long enough now to braid/plait.. might try that.. just need to get some rubber bands.. hopefully if I keep doing it it will stay x