these are just my observations..............

so dont shoot the messenger



the closed ends , and weaker magnets - supposed to reduce cogging(there is a thread around here somewhere about how easy the tekno neus turn compared to a original neu) must make them run hotter, and maybe not as effiecent(sp)

either way i am very satisfied with mine, i just hope with a little gearing change i can get mine around 120* on a 70* day so it will be about 50* above air temps