My advice is keep using it a few days and you will get use to the draw and you will soon prefer it. I know I did and so did many others that thought at first it was to airy but I think the airflow is one of the key elements to why this is such a good carto. That is just my opinion and others may differ.
I thought it was very airy at first but just like the size of the cartos, the airy draw is come to be expect now. I wouldn't want it any tighter. I tried my vGo with a clearomizer the other day and the draw was so tight, I felt like I was using an inferior product, similiar to when I got my 401.
Plus I haven't put a finger on it but depending on how I vape I won't get that airy sound.