Lifetime supercharging was part of the premium ($) offering of Model S/X. We keep attempting to chip at that for Model S and X, but leave the door open via referrals. But we never seem to draw the line in the sand and hold to it. Maybe it's time, but... perhaps we should reevaluate Model 3 a bit. Maybe we should think of the Model 3 Performance as a similar "premium ($)" offering, especially since the prices are actually higher than some S configurations at launch. This could be an additional incentive to nudge people to Performance to add some punch to 3Q (calendar) results too. Note: We gotta draw the line in the sand though and make note that the gravy train is going away -- maybe just announce an end date for "forever" referral benefit, limiting it to only 1 year?