Power Flarm Antena Mounting

List,
Am installing PF Brick into a 27. At first I was going to address the 27/29 Yahoo list but thought I might reach a wider range of experience here. I flew all of last season including a contest with a PF portable on a Williams Soaring mount on the glare shield and it worked great (And yes it did receive ADS-B).
The 27 is a bit different than the 20 (Less room and Carbon fiber thru most of the cockpit area) and I was wondering about what pilots have done with antenna placement. I have seen the Butterfly site and the hall of shame so I think I have a bead on what NOT to do. My idea is to drill/cut holes in the glare shield and mount the Flarm dipole and GPS antenna from the bottom with Velcro (TM) so they will pull loose in an unplanned evacuation (OK Bailout). There were pictures on the PF site (Not the hall of shame portion)that showed the antennas mounted UNDER the glare shield. This isn't right is it?
Also, the old portable was easy to set up by just scrolling thru the pages and following prompts. As I understand this will not be possible with the Brick. I am using an LxNav Flarmveiw so should be able to update with an SD card. I will be using the PF GPS for my SN10. Will this call for other configuration changes other than the Baud rate.
Thanks