Finally I started my project. I already removed my carpet and pad. There are 2 sets of tack stripes along the subfloor diameter. I tried to remove some strips by using a pry bar last night. The strip were crack and removed but the flooring nails which nailed the strips were still there. My question are
1. Should I hammer nails down or pull out?
It's very hard to pull it out if I don't want to demage the subfloor. And small holes will leave on subfloor. If I hammer it down, will it be a problem when I nail down my hw floor strips? I mean the new nail may hit the old nail.
2. I need to sand some high spots to flat. But I see screws and nails there. How to handle that when sanding.