okie so my thread with fans that you can change the pitch wasnt a good idea people thought it to complicated an issue ( i dont tbh but heh ho) what about fan bodies with interchangable blades with diferent pitch and colors etc so you buy a fan body and fit the blades to suit what u need then everyone can run them at what ever voltage they choose 5v 7v 12v but still be able to adjust airflow etc ` ideas ?