There is no need to baste a turkey. It doesn't contribute to moistness. It can help the turkey skin brown evenly, but I find that a turkey rubbed with compound butter and roasted at 350°F doesn't need any help getting evenly brown — and leaving the oven door closed cuts down a little bit on cooking time. There is also no need to rotate the turkey during cooking unless you know that your oven cooks in a particularly uneven way.