every dude I have ever spoken to who knows about this stuff would tell you to add test. Unless you've used eq before, 400mg/wk is normally enough as far as I know too...
you doing some kind of pct as well?
A "lost head" nail is commonly called a jolt head (or bullet head nail).
See pic in case you aren't sure what I mean.
You bang it in, and if you want it lower than the surface you are nailing into, you just use a punch. If the surface is quite hard (like bare particleboard or something) you...
Any medium size jolthead nails will work for this. You will need to punch them below the level of the carpet, but no mark should be visible once punched.
Possibly a bit late, but if it helps... :)