I also have H7R bulbs (55 watt Xenon), but in 4300k color. H7R are specific for normal (non-projector) headlights, these will NOT dazzle oncoming traffic! H7 Xenon bulbs in non-projector headlights will dazzle!
I would recommend keeping them, as they will be an improvement over halogen bulbs. You should stick with 4300k or 6000k. More blue equals less visible light. 4300k has the most visible light, 6000k slightly less, but has that "luxury" tint that a lot of people love (I couldnt care less, I just want to be able to see properly without dazzling anyone).