What do you guys run your graph speed at when vertical fishing?
I usually have 2d and di on split screen ....what do you recommend?

If you are wanting to watch your lure turn it up as fast as it will go

I keep mine at 2 and watch for the streaks

I run mine at 6 so I can see if it is repeating and I am where I want to be.

mine goes to 11

I would google it and find the youtube videos that match your model. I have done it and it works well. I have to change it to my fishing style for the day.

I set mine around 6 or 7 despite being stationary or slowly searching for fish on my Humminbird. This allows me to slab under and see fish response and lure at all times and in live time. I use to have it on 10 the whole time but just haven't found that to be necessary

Wow! Im a little surprised at the difference in opinions about this.

I leave mine on 3, that's the setting that gives me the best picture when looking for fish. I leave it there when vertical fishing, I really don't care if I can see my jig on the sonar or not. I like fishing off the front of the boat, and the transducer is on the transom. Unless I am fishing really deep, the 200 khz sonar cone wouldn't see the jig anyway.

Im usually positioned over brush or timber and am trying to maintain a visual.

I'd like to hear what the Jedi Master, Slade aka Forkfish thoughts are on this...

I never even thought to call him

Set it on 8. It refreshes at a great pace, but doesn't scroll too fast to interpret.