I'm not sure where we're getting mixed messages Tony, but if you use a cut capo and apply it to strings 3, 4 and 5 at the second fret, you will have a guitar tuned EBEABE. If you tune your guitar to DADGAD and apply an uncut capo to the second fret you will also have a guitar tuned EBEABE. If you fret the first string of the cut capo guitar 3 frets above the capo, you will have an A. If you fret the guitar with the uncut capo three frets above the capo, you will have an F#. If you fret the second string of the cut capo guitar 3 frets above the capo you will have an E. If you fret second string of the uncut capo guitar 3 frets above te capo, you will have a D. But if you fret the third string of either guitar 3 frets above the capo, you will get a C. If you fret the 4th string of either guitar three frets above the capo, you'll get a G. If you fret the 5th string of either guitar three frets above the capo, you'll get a D. But if you fret the 6th string three frets above the capo, you'll get an A on the guitar with a cut capo and a G on the guitar with the uncut capo. They produce the same notes played open, but very different when fretted. Try this with two guitars if you don't believe me.
The fingerings would not be the same as they would for DADGAD. They would be the same as for standard tuning for anything above first position. Since most DADGAD players don't stick to first position, there would be little advantage to this capo for someone who wanted to simulate playing in DADGAD.
But people who want to try out DADGAD, not being DADGAD players, hence looking at cut capos as an introduction, like the originator of this thread, for example............would stick to first position.
With the cut capo, yes, there are things that you could do to show that it's not DADGAD. Whether that's playing single notes on the open strings to hammer home that point, or playing barre chords or whatever.
My only point was, that it's being a bit harsh to attack the ad for saying it "simulates" DADGAD, because in many ways it does. Ok, maybe not perfectly, but to be fair, the ad does NOT say it "reproduces" or "copies perfectly" or "perfect substitute for" etc etc. It only says simulates and I just think that's fair because there's so much you can do with both that are the same, only you don't have to retune or have a whole other guitar tuned to DADGAD with a cut capo. It's a fair and honest advertising point to me.
I've toyed with both and have not come across any differences yet myself. But to be fair, yes, when I went up to the 12th fret or so, I was on the 3rd string.
===================================== One Alvarez in the hand is worth two Taylors and a Martin in the guitar store!