Demonic Rage & Bloodrage

[Toadally Awesome]

Recently saw on a friend's playthrough who went for Bloodrager/Demon that there is an overlap between the Rage abilities about certain bonuses not stacking.

Was curious if anyone knows whether the infinite rage mythic ability he got allows both of his rages to function indefinitely and if he can have both bonuses from each rage (bloodline powers/demonic aspects) aside the attack/damage bonuses that do not stack.

Any help would be appreciated.

[Atlas MK II]

Infinite rage does not affect demonic rage.
Unsure about the interaction, last I checked activating demon rage which would switch off regular rages, causing the demon to become both very angry and fatigued.