Lately I've taken videos of what my Flytec 6030 and my Naviter
Blade tell me what should be my Speed to Fly speed.

Here are the videos:

https://youtu.be/ULz1rP9Do_s

https://youtu.be/4Q55XowXkBc

https://youtu.be/7Z6YOo6ivdQ

On the Flytec 6030 the STF indicator is the fat arrow on the right hand side
half way up the speed scale.

On my Blade the STF is shown in the upper right hand corner.

The Mc setting for the Blade is 200 fpm.

The profile for the Blade is
http://ozreport.com/data/Davis_1.44bladeprofile.xml

The IGC file for the Flytec 6030 is
http://ozreport.com/data/02NB4731.IGC

The IGC file for the two Blade videos is
http://ozreport.com/data/2020-03-01-XCM-IUB-01.igc