well,..i strictly do believe about 'how much good items' the server has. For example, in older servers like greece, and babel, the enhancement is much more easier than newer servers like uranus, and pluto.
i'm in pluto, and it's terribly hard to make ur weapon +5, and the ones who hold +7 D9 are like the ones who r holding SOX with pluses weapons in older servers.
anyhow, about the astral, well. . . .i don't think it prevents the weapon to return to +0, there's a limit of failing. . .for example, my spear D8 has failed '4 times in a row' using astral each time, immortals, stones of luck, and lucky powders. . . .in the end, it returned to +0, and I threw the wicked thing in the middle of hotan. . . .
there are no lucky spots. . . .
there are no ritual prayings or whatsoever. . . .
there is nothing but "luck"

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