I just got tint done last week including the pano roof - windows were 35% tint but used 20% on pano roof. The installer did tell me the manufacturer will not provide warranty on the pano roof tint, and that he'd seen some sunroof tints start degrading after only 12 months simply because it is baking in direct sun a lot of the time.

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2009 e70 X5 30d MY10
Innovations | MSport | Carbon Black | Black Nevada | Aluminium Trim | 20" 227M | Panoramic Roof | Rear Side Sunblinds | 6NF | 3rd Row | Self-levelling Suspension | 35% Tint