Trailer Height

[BirdMan]

Has anyone done an axle flip on there pop up to gain more trailer height?  I am looking to do an axle flip (put the springs above the axle instead of below) to gain 3-4" of height.  I know I will have to either get a new receiver or flip it to  ensure the pop-up rides level and maybe another step for the trailer entry.

Depending on clearance and additional room at the fenders I might even look at bigger/higher tires to gain a little bit more clearance.

Other then that has anyone run into problems with this?