For loose bearings, If you fill the race 70 to 90% with bearings, you'll have plenty. I'd actually expect just 60% would be enough. One too many and you'll quickly ruin it.

Not sure why you are showing us the caged bearings. Certainly with those, the size of the bearing matter and the size of the cage that holds them.

edit...
Oh the question is in the title..... which way allows them to touch both the race and cone. My old hubs usually had loose bearings. Only a few of my bikes had caged bearings and that was a long long time ago.

So probably some other will know for certain if you can wait for them to see your post.