Like hvyhitter, I would suggest you give it a chance for a week if you are serious about changing.
Shooting at the blind bale,will help you become used to the feeling of the shot a little quicker.
Took me about 2 weeks to get really dialed in with three under.
Your anchor might change, mine did, Move your anchor around on your face with your eyes closed until you find the spot that is most comfortable for your hold and gives you the best back tension.
CKR