I've been messing around with HotSpot & Ascend-Data-Rate.
Ascend-Data-Rate works properly when it's the only attribute - limits speeds to the requested value.
However, when I have Ascend-Data-Rate and Ascend-Xmit-Rate both in place, the values are reversed. Xmit controls the download speed, and Data controls the upload rate.
Is this correct? It's consistent (when I change the values, it behaves), but it seems like it's kind of backwards.