Full procedural, I imagine, but I heard about 4 or 5 variations on it today. I don't think the tower guys particularly care, but the AIP only offers one option for procedural control zones.
What about if the wind is from the South and you conduct the SID of 29? "Track 291 deg, at 500ft turn left heading 290" A literal interpretation might get nasty with any more than 2 degrees of drift.