Anybody know if eating under net carbs has benefits or down falls? I started Atkins last Wednesday and seem to consistently be eating 15 net carbs rather than 20.

Please let me know if you have any information on this thread

It should not be an issue. The reason for the 20nc is to make sure you are getting all your veggies.
I start with Atkins 72. So I start lower and slower and then work in carbs and up the ladder. I count total carbs though. For me it is what works and is easy.