Have these on a six string Strat, thus the unorthodox implementation. It’s strung with the low B on up, but not using the highest/thinnest .011 string. So sorry I can’t comment on the whole set as it would normally be on a seven string guitar.
Before these my Strat had a set of Dunlop heavy 7 strings, with low B but not using the thinnest string. That set was great, even detuned to low A and the Dunlops held tune and played great. But this Strat has been modified with Duncan 59 full-size buckers in neck and bridge and a Duncan lil 59 in the middle for more of a jazzy, Les Paul, throwback vibe. So wanted to try flats, and in seven string the Chromes are about the only choice.
So these Chromes went on the Strat no problem and it was detuned to low A. But the A wouldn’t intonate. No surprise there, likely they will be ok on a full scale seven string, one with a longer scale than a Strat. To get the low A intonated I removed the spring from behind the saddle to get the saddle as far back as possible, still not perfect intonation but much better, acceptable to my finicky ear when tuned just right. Right now they are back up to standard low B and no issues with intonation.
I was able to convert both my new Fender "Blacktop" Telecaster with humbucker pickups and my old Jazzmaster to Baritone Guitar configuration by installing the six lowest strings. Yes, it took some fingernail filing of the nut on the Nut of the Telecaster, and some sawing and filing on the Bridge of the old Fender Jazzmaster, with the same work on the neck nut, but now they are GREAT baritone guitars. And the strings all have the right tone and tension.
Oh, I tune to B E A D G C... five intervals for each string... they are like a little Basses. You can do both bass and lead guitar at the same time. Honestly, I don't know why more people don't go this same route.
But with D'Addario Chrome 7 Jazz Lites... and a few household tools... you can.