I changed my RDI to 1400 this morning from the 1600 FS had calculated. I changed it because I rarely go over 1400. I only started Atkins in lated November so I am by no means an expert, but I am in agreement with liv001. The only time the calories come in to play is when you stall, then Atkins recommends taking a look at how much fat or protein you've been taking in.
"There is a reason the rearview mirror is so small and the windshield is so big, where you are headed is more important than where you have been.'