I updated the firmware on my DUAL GPS 150 to V4.2.4 and using the Bluetooth GPS mode on TA, the screen says 5 Hz!

So Congratulations to Weston & team on an application that has met the goal: 5 Hz updates.

I still can't see the data sentences coming through on the screen tho, unless someone knows how to do that. The DUAL GPS Status app doesn't show that stuff, unless you count the little dot near the top that blinks quickly.