Hi rtigtony, like you say the DDPai is a near perfect fit behind the mirror of the Tig, but unfortunately thats probably the only saving grace for it.
Granted the camera takes very good quality video, but it also has a gps receiver, that is very much sub-par. There is an app available for both Android and iOS to view the output via wifi which I found quite hit and miss. A lot of people have also complained of a 'buzzing' on the sound, which I also was aware of.
The firmware updates on the DDPai are done using the app over wifi, and some of the updates have introduced more problems than solutions, but the one thing that really annoyed me is the way the gps info is saved to the micro sd card. It meant that the program I use on my laptop to view the video and routes (called Dashcam Viewer, which I highly recommend) would not recognise the gps.
As I said, my previous camera is now back in and working properly.
If you're in the market for a new Dashcam then have a look at this website which I've found to be of great help when selecting a camera, and you'll also read some of the DDPai woes in the forum.
https://dashcamtalk.com
Steve