Base retention of wax is not an end all sign of ski quality.
Different type of base materials require different intervals of waxing.
A-bang bases are made of p-tec. FALSE.
The bases are "extruded." This type of base is more durable against abrasions which is why it's an excellent candidate for park ski construction. You'll see many of the park skis using the same base.
Because of it's durability, it requires more frequent waxing to perform well as it does not retain wax as well as race bases or sintered bases.
Sintered bases are often times much quicker and retain wax much better, but they do not hold up as well against abrasions and park abuse which is why Line incorporates extruded bases in much of their park skis.
A ski base made of SOLID p-tec would not make it down one run without all the wax rubbing off. That's just silly.