Gents
In Africa Ed did fly with the Taurus on an altitude of 5000 feet we could read in the article in MAN.
That’s not a problem for me, in the Netherlands , highest mountain is 322 m (1000 feet) lowest point about -7 m, but!
Temperature differences and moisture that’s can be a problem so!

Most important is the pushrod of the elevator to check.

I did mount a micrometer device in the fuselage to measure the differences in length of the pushrod.
Mounting was inside the house, and a temperature of 20 degrees C .
Outside it is 0 degrees and misty.

You see the pictures, first inside, then a picture of the measurement and then after 2 hours outside .
Difference of the pushrod in length is less than 0,01 mm. (0.00039370078740157485")

Both the pushrod and the fuselage are mostly balsa over the effective lengths. The pianowire of the pushrod doesn’t change much when the temperature changes 20 degrees (delta is 36 degrees F)
So we could expected this but now we know for sure!

Cees