[sneaglebob]

I notice that in reviews for pro 900 people point out that its very difficult to put on their headphones properly due to the s logic and I wan't to know if its really that big of an issue. Any instructions will help.

 

[fabio-fi]

This should help, 
http://www.head-fi.org/a/ultrasone-owner-s-guide-the-missing-manual
 
Personally i just use the position that makes me feel comfy.