Clone works fine from the command prompt, but smplayer wants to send it a "-noquiet" mplayer switch which mpv complains about. I posted a comment over in rvm's smplayer forum, but it hasn't been approved yet. I cannot see how to disable specific mplayer switches in smplayer, only add them from the GUI.
I took a shot at converting a H10P show to the basic iPhone profile with the newest Handbrake from
John Stebbins Ubuntu repository. Didn't work out too well, but I didn't try too hard, either.