I just bought a Richard Sachs UOS fork kit, with plug-in style drop outs.

Since the drop out inserts inside the fork leg, how is brazing material fed into the joint? At the gap between the drop out and fork leg?. Add a notch on the end of the fork leg? Or, would it be okay to drill a couple of small holes in the end of the fork leg, and feed in the braze there?

No doubt, there is more than one way. Please share your suggestion.

Edit: going back in the memory machine, I recall that Hank (Henry James) provided instructions about forming rings of brazing material, and inserting them into the ID of the tube before inserting the drop out and brazing. And that's what I did for those. I suspect the same technique could be used here also.