What’s the best way to fix this very minor dent before powder coating?

I picked up this very used ‘09 Surly Long Haul Trucker frame and the original finish is pretty thrashed. I’m considering getting it media blasted / powder coated but I found this slight dent in the top tube, really just a flat spot about the size of a fingertip. Hard to see but you sorta see the light reflection bend around it just to the right of the big chip… and I can feel it.

I don’t mind a beat up looking bike but if I’m getting it recoated then I figure the ding will stick out and look crappy.

Would this be a good candidate for working the dent out with frame blocks? From what I’ve seen online they can get a dent closer but not 100% perfect and the remaining dimple usually needs to be filed and sanded down afterwards.