Does this still give you better performance, compared to using whichever Panasonic/Samsung TV profile?
As long as there are enough discreet IR codes in the XBMC profile, this method is fine, but the config will still get a bit messy (for example mapping Zoom+ to the guide button to E which brings up the EPG). Would be easier to just have a full keyboard in the Harmony. But yes, I see your point, I'll probably do it this way in the meantime, thanks for the suggestion!