Hi Horsch,
I missed a couple of posts with a 36 hour marathon without sleep as I was trying to catch up on the forum, some research, and some other things that needed to be done and unfortunately yours was one of them that blurry eyes went right past.
I think that post #2 here along with post #136 here and the links they contain along with a more detailed conversation with Chuck should give you more insights into the differences between them.
Phoenix