I think stropping in general is the least understood part of our hobby, and more people other then just mparker and AFdavis need to do some serious experimenting....

I have for a long time believed the stropping on pasted strops creates a concave edge and eventually you have to hone...I am not as convinced of this any more.
We here at SRP tend to be a hone based forum, we are all about the hones, strops are a distant second, the red headed step child of keeping our razors sharp... I think we are going to eventually find that the strops and stropping in general are much more important then we realized....