The best way to "know" isn't by reading it online. It's by trying and seeing it for yourself. There is a lot of well founded hypotheticals on here, but no one ever created anything with a hypothetical. Go test, experiment, retest, modify, adjust, and create! :-) CineStill is called 800T not because it is "low contrast" or even lower in C41, but because testing has proven that the gamma is increased in C41. It's not unlike B&W developers controlling contrast. CD3 is a low contrast (gamma) developer. Now go out and create! ;-)