I am very new to this and have just finished rushing a rocking chair seat, but need some guidance on the back. This is what I need to do, but I'm unsure how to start since my seat had no corners and I had to adjust for the difference in width front to back. Also, the seat frame was pulled out to rush, but the rails for the back are attached. Do I just start on the inside rail and go to town or do I need to do something different? Thank you for any help and feedback.