If you're hitting hard S7T is in top 5. I string it in mains with Head Lynx Tour in crosses, new Radical Pro with a bit of lead, at 24/23kg, so 1 or 2kg lower than other strings. It is hot summer here. S7T 17 is ~1.23 really, and Lynx Tour 1.25 is ~1.26-1.27. S7T 16 is ~1.27, I have it but haven't tried it yet. When I do try it I'll probably go for 23/22 or even 22/21kg, it has that much control. All S7T is also great but it is too rough for me, very sharp edges. I'd really prefer it to be rounder like Lynx Tour.
S7T is good in every way really, control string but well dampened, no rough sensations. Lower power but that's OK, that's what I need, it really keeps the ball inside the lines. Plays really well the second time also, it notches a bit though, and I've played with it 3 or 4 times last week, and it was still good, but almost dead as you would guess. I kind of wanted to see how it plays until it breaks, but it didn't break and I had a match so I cut it out and strung a fresh one with same strings.
I was comparing it with Head Hawk Rough / Lynx Tour hybrid, excellent as well, but that one broke in ~2h, for the second time already. It seems that Hawk Rough in mains gets quickly eaten/notched by Lynx Tour in crosses, which is a bit unexpected as it is also a fairly stiff string. It's the Musetti combo btw.
Price is OK, and it's a 220m reel, but I have to say that I find most strings wildly overpriced, so 70ish € for a reel is reasonable.
S7T is made in Germany, and I am slightly suspecting it's not rounder because there already is a rounder same string - my suspect is Oehms Alu Pearl Rough, but I haven't tried it yet, they only have reels at the moment it seems.