Regarding overriding PPDP, it really depends on the game. Most games that have in-game PPDP settings will use that over anything else, simply because it is the last value set. With OTT i set PPDP on the Oculus Service, before the game has started up. This usually means the game will "inherit" that setting. But games with in-game PPDP might apply their own setting after the game has started up, meaning it will essentially "overwrite" the setting OTT made to the service. They should not multiply, so 1.5 in OTT and 1.5 in-game should not equal 3, it should be 1.5, e.g. the last value set should be the one that is actually used. This is from my testings anyway, but in-game implementation of PPDP might differ from game to game, so some behave differently. If there is a setting of 0 in-game, it *should* mean the game will not adjust PPDP, and hence any setting in OTT should be valid. It's a bit of trial and error with different games to be honest.