That's hilarious!
For the American guy with and MVP trainee: You should consider training FT for at least one week. My guy has atrocious FT, but shot 31%, better than nothing. That 0% can really hurt you in close games.
Formula is obviously exponential. Percentages grow very fast with skill, in the begging, and very slow at higher skill levels.
Someone was researching about this before, I think he found that average Ft can shoot some solid percentage, 70% maybe