I tried both of these. Both are 5 to 6 feet long with large ears and with very strong stalks. Damaun KS is super sweet when it gets yellow. I thought it was ready to eat when the color was white but it was not that sweet then. I did not have chance to taste Mezdi.
Interesting. I didn't know OP supersweet corns existed - so thank you for the recommendation. At first glance, it does not appear that Mezdi KS is available (yet) in the U.S.. There is a source for Damaun KS though, and they also have the Painted Mountain corn that I want to grow.
Damaun, Medzi and Tramunt are all selections of the same mix of yellow hybrid supersweets. Their names mean 'morning', 'noon', and 'sunset' in the Swiss Romansh language.
I grew Medzi this year and was extremely pleased with its performance. It was a cold, rainy summer but they grew 2m tall, and thanks to their tendency to tiller they yielded 3-5 cobs per plant.
We have strong winds here on the coast but they weathered each storm and self-righted by producing more adventitious roots. I'm sure the tillers also helped in this regard. The cobs were hefty (a meal in themselves) and tasted good.
The only amendment they received was an inch of green waste compost spread on the bed surface (no-dig) and half a handful of inoculated worm casts in the dibber hole at sowing time. I was shocked by how large, green and healthy they were.
On humid mornings I noticed a gel dripping from the adventitious roots, which appeared to be the same exudate linked with nitrogen-fixing bacteria in tropical corns.