Harmony confusion -- which programming method to use?

I have a Harmony (650) and I'm setting up Flirc with XBMC. But I can't seem to find any definitive answer on the best method to use. There is a pinned post that describes using a Panasonic or Samsung TV profile to control XBMC (http://forum.flirc.tv/index.php?/topic/22-harmony-remotes/), but that's dated from way back in 2011. Is it still the ideal way to go? Then there's the recent blog post about Flirc having it's own harmony profile now (http://blog.flirc.tv/flirc-has-a-harmony-profile/), and

I took the route of manually configuring FLIRC with a Harmony 650. I also added 20 extra keys through the IR learning feature. I programmed the Harmony 650 with the Panasonic TV profile and used a second learning remote to "learn" the numbers 1-10. Then I turned around and had the Harmony "learn" the IR codes for the same 10 buttons extending the FLIRC profile. I did this again with the Samsung TV profile so I had 20 additional buttons I could use. I mapped the 10 buttons to ALT-F1 throu