I have mine already half-built, but I rarely get the time to work on it lately. You know, when I work on this I want a full evening with no disturbing my methodic work, time and space enough to paint and let it dry, etc. and with two little children at home this happens rarely
Anyway....
I drilled all holes in the hull with a manual bore tool and then sharpened them, and the result is pretty good. It's a lot of work, but the result is worth it, specially with kits like this which have less detail due to their age.