I am in the process of building my own blow dryers for my self serve bays. Which nozzle would be best to use, the air shammie or blasto-dry? I read where most air shammie users prefer the fan tips on their guns, is this still the general consensus? I see kleen rite sells the air shammie guns for $94 and the fan tips are an extra $42. I am not sure what the blasto-dry guns sell for?