a carb is a carb is a carb to me
I use Atkins 1972 original version. I count total carbs, NEVER NET carbs.
In fact I only eat from the A72 induction food list...basically I am a biological 0 carb eater. (this is personal because I am so carb sensitive) but I find that the original Atkins 1972 book 'tells it like it is' about carbs.
the NEWer atkins includes all kinds of junk like atkins bars, frozen meals and more. to me this is not real food. it is frankenfood along with 'net' carbing to make it all palatable. this convenience food and 'net' carbing makes the 'diet' WAY more comfortable to people, therefore they will find it more accepting.
when in doubt, count total carbs
also eat real food you cook
try to bypass the restaurant junk if possible
one thing I learned along the way is take absolute responsibility for the food you eat. hands on cooking means you control what goes into your tummy
that is just some of my ideas on why I like A1972 version better. personal choice in the end but many have done well on Atkins 20 net carb and it comes down to what plan just suits you the best along with what foods work best with your body.