Shenzhen Bao'an airport to bullet train station

Do you go to the North Railway Station? If yes, here are the different methods.
If you take the taxi, it takes less time, about 50 minutes, and more money, about CNY100(for two staffs).
If you take the metro line 11 and get off at Qianhaiwan where you transfer to take metro line 5 to the North Railway Station, the duration is about one hour and it costs about CNY8 per person.
If you take the shuttle bus E29 at New Terminal in the airport, the ticket fare is about CNY10 per person and the duration is about 1. 5 hours. This way costs less but take more time.
There is no train running between the two places. You can choose one for your convenience.