I saw some of the older posts recommending deck screws for fasteners. Is
this a good idea? I don't mind saying I'm too much of a wus and not to
mention clumsy to nail about 60' of soffit manually (no nail guns or
electricity available) but I suppose screwing them in with a cordless drill
is doable. I even tried pre-drilling nail holes ... too time consuming.
We are using 1/4" plywood.

I don't want to be rolling around in my grave 50 years from now when
someone asks "I wonder who the bleep clown who screwed these in and
painted over them was".

oh yeah, we were going to put in soffit vents but apparently the attic is
blocked off from the eaves (no air flow). Is this normal? I guess it is a
1950s or 60s ranch house (house is not mine, just helping a friend)