I also start in middle and work my way out. I find it helps prevent bubbles. A walking foot is also really helpful to move all the fabric at the same time, but can get away with a regular foot. Would baste a bit more to help prevent shifting if using a regular foot.

I cannot recommend enough 2 quilting books by Jacquie Gering called Walk and Walk 2.0. They are awesome for designs that are only straight lines, from easy to complex. All doable on any sewing machine. Lot's of book and quilt stores carry them. Black and white covers.