David Gilmour has been known to use Dunlop Herco Flex 75 Nylon 1.01mm Guitar Picks since the 1970s during his time with Pink Floyd. In 2015, a signature version of these picks was created for Gilmour’s "On an Island" tour. This is supported by a user-uploaded photo.

The book "Whole Lotta Led Zeppelin," by Jon Bream, Robert Alford, and Charles Auringer, states on page 164, "He [Page] preferred heavy-duty Herco 75 picks."

Josh Homme is currently using Dunlop Herco Flex 75 Nylon 1.01mm Guitar Picks, as evidenced by a close-up view of his microphone stand in the performance video of Queens Of The Stone Age's "My God Is The Sun" at the Open'er Festival 2023, recorded and published by Alter Art. This particular video offers visual confirmation of the guitar picks Homme selects for his performances.

During certain 2005 concert dates, May has been known to use custom-molded silver-nylon Herco picks, presumably using the corse grip on one of the rounder shoulders of the pick, due to his decades-old preference of the notched side of a British Sixpence coin.

Uses To Pick to get this classic growl tone

Mentioned on Jim Dunlop website as a common user of these picks.

"I have to have a thicker pick with a grip. I use the silver Hercos .75mm ones, like Jimmy Page."

A Reddit post by user DJ_HardR confirms that Rivers Cuomo uses Dunlop Herco Flex 75 Nylon 1.01mm Guitar Picks, as they obtained one of his guitar picks at a concert.

From 0:45 onward, a white Herco heavy gauge pick can be seen between Gallagher's fingers throughout this October 6, 1976 interview for WDR. At 2:10, we can vaguely see the circular grip-logo. At 3:06, the interviewer asks Gallagher about his hybrid picking technique:

[Interviewer]: "You use what you call a plectrum, what do you call these things?"

[Rory Gallagher]: "A Plectrum, yeah..."

[Interviewer]: "But you use your fingers too?"

[Gallagher]: "Yeah, fingers as well."

[Interviewer]: "Can you show? for our viewers who are playing guitar... what you do with the plectrum?"

[Playing]

[Gallagher]: "The best way to play is with a Thumbpick on here and two metal picks sometimes I play like [inaudible], normally I play it with a plectrum because there so much electric there, there's so much electric guitar that I get so used to this style, I stick with it."

Gallagher subsequently specified the grey Herco 75 in the February 1985 issue of Guitarist and the August 1991 issue of Guitar for the Practicing Musician.

Guitarist, February 1985, "Rory Gallagher" by Bob Hewitt

I use Herco grey picks, which are a hard, heavy nylon type. I sometimes use the serrated grip for solo parts. For acoustic I prefer a tortoiseshell for crispness.

Guitar for the Practicing Musician, August 1991, "The Wearing of the Blues" by Vivian Campbell

VIVIAN: What kind of picks do you use?

RORY: Charcoal Herco grey picks. I guess they're called 75 or something.

In this 1980's Interview/Bass lesson, Squire is asked to demonstate and remark on his picking style, as well as his choise of picks, and at 2:15, holds up a white-grey Herco Flex 75 Heavy for the camera to focus on.

[Interviewer]: "You have one of the most distinctive sounds in rock 'n roll (as far as I'm concerned), I attribute a lot of that to your picking technique, could you explain a little bit about the way you pick? maybe the gauge of pick that you use, and how you approach the pick?"

[Chris Squire]: "Well uh, I've always for some time now used a Herco heavy pick, which are these gray ones (I'm not sure if you can see it, but uh, it's gray). And they make a guitar pickup, that's kind of a bronze colour too."

"And um, and probably most people know that our voice is Rotosound strings, which is the standard 'Swing Bass' um, gauges... To know exactly what they are, we'll have to look at the packet, but uh, it's the standard 'Swing' gauged set."

"And um... There is one thing I guess not many people ever realized about uh, a lot of the way I play, is that I don't just play with a pick, I actually over the years have developed um, a technique where the uh, the pick itself is just, just in front of the thumb. So in fact a lot of times I'm actually playing, I hit the string with the pick, and then after that my thumb hits it like a millisecond or two later, which is like a kind of an ADT."

"It's kind of hard to demonstrate because it's, real quick to get your timing, but um, if I just took the G string and played it with the pick, it would just be like:"

[Picks Midrange Bass Tone]

"If it were just my thumb, it'd be a softer sound like:"

[Plucks Slightly Muted Bass Tone]

"But the way I do it, is tend to put them together and have a:"

[Picks Bright Harmonic Bass Tone]

"...So you're getting a harmonic in there as well, so it's like:"

[Plays Fast Harmonic Bassline]

"So it's kind of a technique that I don't think anyonelse has really used. If anyone else has, please write to Star Licks and let them know, because I don't know how I developed it."

[Interviewer]: "Do you feel you get more of a feeling for the string that way?

[Chris Squire]: "Uh, yeah, yeah there's definatly more... [Plucks] There's more contact with the human body, I think just hitting a bit of plastic itself the same thing. So there's definately... you can get more 'soul' into your playing that way."

In this image, we can see Simmons preforming live with his mic stand laced with Herco .75s.

Urban's guitar tech, Chris Miller, says that Keith holds the Herco picks sideways, it grabs the strings more and gives a specific sound. It is part of Urban's signature sound.