"Other basses include an old Guild Pilot and a gold-colored Ibanez Soundgear."

Jaco became an endorser of both Guild and Hartke cabinets in 1986. From an interview with Jaco's son and Larry Hartke, to be found at: http://jacopastorius.com/features/stories/the-jaco-hartke-connection/

"JP: Bob Bobbing told me something about how my Dad was actually the one responsible for getting you the deal with Guild in the very beginning. How did that go down?

LH: Mark Dronge, the owner of Guild at that time, was developing a new Guild Pilot Bass. Mark went to see Jaco at the club to show him the bass. Jaco liked the Pilot Bass, but came back at Mark with the comment that his new experimental bass cabinet that he was using was the “real deal,” and “IT” was what he really should be interested in. Shortly there after Mark actually contacted me, and BAM, just like that, we got a distribution deal. The rest is history.

JP: Actually, I was always a little confused when I saw that ad with my Dad holding a Guild bass. My Dad always played Fender jazz basses when he recorded and played out… He was playing his Fender jazz in New York during the period you knew him wasn’t he?

LH: Jaco did like the pilot bass that Guild made for him, and he did play it live a lot during that period. They had early EMG pickups and they sounded very full and clean. The Fenders were always around though and he did continue to use them.

Sergio Vega plays a white Guild Pilot Bass in this video. It looks like he has covered it in stickers.

Used extensively from 1984 through 1986.

In the mid-1980s, Benjamin Orr incorporated Guild Pilot basses into his performances, as evidenced by footage from "The Cars ☮ Just What I Needed" on YouTube. He was seen playing both black and red models during this period. By 1987, during the "Door to Door" era, he returned to using Fender Precision Active basses.

Zeta Bosio used the Guild Pilot Bass during rehearsals and some performances for the album "Nada Personal" (1985), as shown in the image provided on Imgur.

Jack now plays a Guild Pilot from the mid 80's. A lightweight pj bass.

at around 18 seconds you can see the headstock semi clearly say "guild" and the body shape is quite distinct so it wasn't very hard to put together which one it was.

Such became an endorser of Guild Pilot Bass from 1986-1987. He played with this bass on two songs like "You Give Love A Bad Name" and "Livin On A Prayer".

Levi used a Guild Pilot bass with Prince in the late 1980s and early 1990s.

Doug Carrion is confirmed to use the Guild Pilot Bass, as evidenced by the live video recording from March 27, 1987, at Fender's Ballroom in Long Beach, California, where he is seen playing this bass with Dag Nasty. The performance was captured by Daghouse Archives and is available on YouTube.