TINT with Taupe interior

I have an appointment next week for tint. I have an 08 TL, Polished Metal Metallic with Taupe interior. I live in Mass where the state's law is 35%. Since I have Taupe I think it's pretty much pointless to get 35%. I'm stuck between 30% all around (but don't want to deal with cops) or 35% all around and 20% rear windshield. I don't want it too light or too dark. I just want it to look clean. I can't seem to find many pictures with 35/20 combo esp with light interior. Also would 20% in the rear be too dark to see at night?

Any suggestions or pictures would be greatly appreciated!