I usually go with option 1 or 2. All depends on what look the customer wants. If they used a 3/4" face soffit channel instead of a 1 1/4" face f-channel, I would definitly use a frieeze board. I use a smooth shank 2 1/4" x .092 in my guns, same for face nailing. I never shoot face nails in. Always pre-drill and hand nail. Good luck on your job.