I've been looking at the silverplay myself. Like all the different cap options. This RTA doesn't have negative post air holes. From the looks of it, the four holes they are referring to are in the airflow control around the base that goes into the inner air slots that sits beneath where the coil will be..
Yeah, customization option is a big one for me.
After reading the description from the seller's website, I was led to believe that there are 4 air holes on the deck. Or am I just reading what I want to read?
"We also designed a revolutionary dual to quad, quad to dual airflow system. This unique airflow system allows air to come in through the bottom of the base, also from both directions of the negative posts holes. When all FOUR airflow holes are open, you are in cloud chasing mode; when you choose to close off the two side airflow holes, leaving just the two main airflow holes open, you are in flavor chasing mode...Total FOUR airflow holes, two gigantic 3mm main airflow holes hits the coils from underneath, two 2mm negative airflow holes to hit the coils from the back"