Tee, not recovery.   It is true that hitting an iron off the tee might lead to a negative strokes gained for the tee shot, but it can be a better decision because using a driver would lead to a more negative SG.  ‘Recovery’ should be used as a label for ‘non-tee and non-fairway’ shot where the player is forced to use a different club or different line that would normally be chosen for the shot.  For example, in the rough if you’d normally hit a 5-iron toward the green, but you are in the woods and instead punch out to the fairway.  For another example, in the rough you’d normally hit a 5 iron straight to the green but the rough is so deep that you take a wedge to ‘hack it out’.  In both examples, the lie should be labeled as ‘recovery.’  A ‘recovery’ label places the ‘blame’ for a two-shot sequence on the first shot, not the second shot (i.e., the shot that led to the recovery lie).