I really don't understand the statistics of gears, I mean how do the armors statistics add up and etc.,

For example, a Vog piece has a half-full resistance to fire (3 bars), so shouldn't that mean that a Vog Set would grant max fire? (I know it doesn't but shouldn't it?)

I tested using Skolver Coat w/ Freeze: Med UV (Without a Skolver Cap) on Training Hall, and I surprisingly never got frozen in the platform, while testing a Skolver Set with no UV at all, still had a chance of freezing me. Wouldn't Skolver Set have more freeze resistance?

Does this mean that the half-full resistance to fire on one armor/helmet only works if you wear another armor/helmet with half-full resistance to fire? Cause frankly I obviously don't know how this works.