Thought about a GTN 650 but rethinking after talking to smarter guys- opinions on replacing the 420W with a GTN 635? Am trying to do a sensible cost effective panel upgrade and use as much of the current equipment as possible. Budget is a factor so trying to keep the cost under control.
- An SL-30 is already installed so no need for the 650
- Seems to be a lot of interest in purchasing my used 420W
- Really like the ease of navigation and menu selection of the touchscreen 635
- A lot of other upgrades in process, just focusing this discussion on the GNC vs GTN GPS/Comm
Comments?