I have the Toytec Superflex 2" rear (RCC2.0) paired with Bilstein 5160's. I don't really mind the rake with the approx. 3" front lift I have - but it's def noticable IMO. Anything less than 3" up front, paired with the 2" lift in the rear will be a lot more noticable.
My gripe with these rear springs/shock combo, is the nasty hop it has while going over bumps. My intention is and always has been to purchase a steel rear bumper/swing away tire carrier. But how it rides right now, you basically have to bring it under 5mph so the rear doesn't bounce like crazy!! - unless you like that sort of thing
If I could to it all over again, I would have gone with the 1.5" springs by Bilstein pictured below my rig...