Neither curved nor uncurved grades remove points that a student earned from the student's score. Uncurved grades obviously just give you what you earned, and traditional curved grades give you more than what you earned. This "hybrid" gave me *fewer( points than what I earned.
> and traditional curved grades give you more than what you earned.
Traditional curves (mapping grades onto a bell-shaped curve based on the class average) do potentially give lower scores than standard 10% brackets (90% = A, etc.)
There is a common thing used in some places (particularly secondary -- don't know that I've ever seen it higher ed) often called a curve which just takes the highest grade in the class or the grade at a certain percentile point and calls it 100% and renorms scores based on that, and that system never gives people lower than the pre-adjusted score. That may be what you are thinking of.