On
http://www.carmoworld.com/motors-wheel.htm , they have blank armatures for sale (1/32 car motor wheels. 1/32 car motors are 130 cans). What effect does the shape and number of poles have on the characteristics of the motor? For example, some are solid, like the ones that come stock. Others, though, are seperated, such as
===
===
===
One even has 6 poles. Whats the difference, besides price and look?