Just started a cycle of finaject and deca 200, :

1.whats the best shot location? arm, etc
2.Is it better to shoot after or before working out?
3. Should I feel a burning sensastion about 20 min after shooting, in the same general location?
4. IS it ok to put the deca and finaject in the same shot (1 ml each, once a week of course doing the fina every other day)?
5. IS a 1 inch needel ok to use in glute?

thanks for input