Some Structural welders are being required to make welds like this 5F round tube to flat plate using 5/32" 7018. Here are a few tips on machine settings, arc length, and body positioning

Sam fixes a seeder from the 60's using 7018.

Matt Hayden Stick Welding Overhead Roof Top Weave 7018 1/8"

Repair on a TMR (Cow food) mixer. Process: Stick, Carbon Arc Gouging Material: Carbon Steel

Welding Overhead 4F position tube to plate with 5/32" 7018 is a bit more challenging than with smaller electrodes but the same fundamentals apply for the most part.
Tight arc length, rod angle, and restarts are demonstrated with instructive arc shots and body positioning.

A look at a quick welding job on a tractor rim. This entire job took about 3 hours. Process used: MIG STICK | Materials used: Carbon Steel, 7018

In this video...overhead welding at 130 amps with 7018 1/8" electrode.
One mistake I made in welding school was running too cold on overhead

In this video, I am stick welding with 3/16" 7024 rods on a multi pass weld on one inch thick carbon steel. Also show some welding with other commonly used stick electrodes

Amperage, Rod Angle, Arc Length are the key factors for stick welding vertical 7018 tee joints

One test beats out 100 opinions. Cut and etch testing of a multi pass fillet weld using 7018 stick electrodes