My problem with Con skill is: when do you use them that it could not just be a simple Con save?
Or maybe con save are only when specifically targeted by an effect and not general endurance against passive things such as strong winds or extreme cold.
- Concentration as a skill is pretty interesting. Yes, its a must for any casters, but there already some skills that are auto-pick (aka perception).
- Journey, as said in previous thread, could be for long distance voyage, to skip the monotonous day per day march.
- Grapple is a good idea for Str, if you also include the optional rule for climbing unto a larger creatures and fold it in this skill.
- Str could also have a Drive skill, for guiding mounts and vehicles and probably rowing and handle a ship rudder.
- For Lift, I'd go more genera with a Might skill, covering lifting, pushing, breaking stuff etc