I think that you are trying to do a 12 hour a day sleep schedule, which in the long run will prove to not work for either you or your bird. What I do is watch the sunrise in the morning so that my birds are exposed to the dawn, during its twilight period and then the bird wakes up naturally as it would in the wild and the same in the evening. I make sure that they are exposed to the twilight period of dusk and allow the bird to go to sleep naturally as the sun sets. These two times are very important to regulating the birds internal biological clock. The need for this becomes more apparent as the bird approaches maturity as this biological clock is the timer for the onset of breeding season. Failure to keep the bird to this solar light schedule will result in a bird that remains hormonal and becomes increasingly aggressive. Right now this doesn't have as much of an effect on the bird due to its age but will after maturity.
The birds diet is also a factor in its breeding cycle and its level of aggressiveness but it can affect the aggressiveness now. Too much protein is often the source of unwarranted aggression in both juvenile and adult birds.
It sounds like you have a pretty decent seed mix with this AS30 seed mix. I have no idea what Johnstone #1 is. Is it a pellet? I will try to look it up today but if you order it online and could provide a link to it, that would save me some work. Fruits and veggies are great.
Now there is some controversy in regards to seeds and pellets. Personally I do not feed pellets, but I am not here to debate the pros and cons of these foods. It is important to note that you don't usually require both of them. Not only do they seem to interfere with the birds choice of which it wants to eat it often leads to having a diet that is too high in protein. So I will just let you know what I feed my birds and let you make your own choices on this.
Shortly after sunrise my birds get a fresh raw fruit, a fresh raw vegetable and a fresh raw leafy green and then about an hour later I give them their breakfast which is a homemade cooked food consisting of whole grains, vegetables and white beans and lentils, we call it gloop.
viewtopic.php?f=8&t=13666 This is a link to it in this forum.
and they are given enough of the fresh produce and the gloop to last them all day until dinner time. Dinner is served about 2 hours before sunset and it consists of their seed mix which I remove after they go to sleep for the night.
None of the things that I have suggested will be an overnight cure for the behavior that you are describing they all require a little time to work. don't get discouraged when telling your Grey no ,don't bite and sitting it down doesn't show improvement right off as Grey can be stubborn and you have to be consistent as well as persistent in setting these boundries with them. Some times it is like they need to feel that it is their idea to not bite you. I didn't mention it before but a daily routine is very helpful with Greys as they really are not fond of changes so you also need to add a daily time for out of cage and personal one on one time with you. The difference is that one on one is time for the bird to interact directly with you while on you or right next to you, often it is a bit of both. The daily out of cage time is time that the bird can use to explore its surroundings ,fly about and primarily do bird stuff which may include personal on you time. They require a minimum of four hours of this out of cage time of which one hour of it should include the one on one time.
