Funny you should mention Uukha. I recently acquired a pair of EX1s, and had to make a string for them. I made it from DF10, 12 strand, and it is shooting beautifully with it. No ill effects, but it still has very few shots.
But, I have been using DF10 strings on other bows/limbs, for more than 5 years now, and never noticed any weird issues. That includes Win&Win ProAccents, Innos Power, Border TX40 and Hex5, and no issues. And that includes thousands of shots, in all conditions. I have built strings with it from 8 to 14 strands, and never had an issue that could be attributed to the string material (other than too much wax from the factory).
Dsiclaimer: Maximum poundage I used it on was 42 lbs. on Olympic recurves. I never used it on compounds, or traditional bows.
I have, more recently, built strings with 8125, and, as expected, behaviour was pretty much the same (had to use more strands, of course). I did find a difference with 8190, which seemed harsher when shooting. Didn't like it. Maybe it's just habit.
On another note, about geoffretired's question: maybe there is a huge gap in my knowledge, but I thought BCY and Brownwell were the 2 main manufacturers of bow string material, for many years now. The specific products vary in material(s), colors and thickness, and, sometimes, in strand thickness, but they have many more different products than different materials. And, of course, they do products for other purposes, not archery related. At least, that's what I thought was the state of things, when I paused on my archery, due to the pandemic. Has this changed? If so, I would surely like to know about it.