Hey, sorry for the delayed response! Replying here to avoid diverting the other thread. If I remember correctly I had the middle finger nail fairly short for this one, but a tiny bit of the nail would probably still contact the string at the end of the pluck. I tried using longer nails as well but found that they would get continuously chipped by the unwound strings - super annoying!
There’s a few “cheats” that go into this tone, as you can see from the discussion above 
One element is that I plucked the strings pretty hard with my middle finger, but a lot of the final effect is also due to the double tracking and the signal chain. In particular I was using very dark amp + cab settings, with a compressor in front, and I also had a pretty aggressive low-pass filter in the final EQ to try and kill the “plink plink” effect of steel strings.
I just realised I forgot to post the signal chain by the way! If it is of interest I can try and dig that up.