TrippyHippy said:
The skill levels are perfect as they are.
I think the problem here is in the
interpretation of what each level means, rather than the mathematical success progression.
" A character with 0 levels in a skill has a basic understanding of the principles involved...a character with 1 or more levels has experience using that skill...a character with 2-3 levels would be a professional in that field; a character with 4-5 skill levels is an expert"
For instance. Would you be happy to know that the international flight you've just boarded was being piloted by a rookie with "basic understanding of the principles involved" and no actual experience?
Using those precise words would set serious doubt in your mind on the pilot's competence...
Going back to a Traveller example, we could take the poor 1st term Marine grunt and kick him out of the airlock in a vacc suit and tell him to board a combat damaged pirate vessel. Technically after
4 years of training a Star Marine should be perfectly capable of performing such a task - there's something wrong with his military training if he can't.
Of course since he's not a vet, there's a very high chance of him becoming a casualty. But if his level 0 skills from Basic Training are literally "basic understanding of the principles involved" and no actual experience, then there is no way in hell the poor fool is going to survive the dangers involved! (*)
If, on the other hand, we can say that level 0 skills indicate
competence, then I can visualise him surviving the experience.
Thus, its all in the descriptive text...
(*) Avoiding debris which will puncture his suit, enemy combatants firing at him, remain aware of his life support, be capable of repairing it under fire, perform a self powered maneuver across to the pirate ship, try to maintain orientation after weapon recoil, successfully fire his weapon at opponents and not accidentally shoot friends, etc, etc.