He is correct, rotors warp and will shake the wheel during light braking. My recommendation is go with the Z1 two-piece rotors, to have the added benefit of lowering the unsprung weight.
Z1 2 Piece Akebono Front Rotors
They also have two-piece rears and a brake upgrade kit, where new pads, fluid, and lines can be optioned in. If you want to do all four at once.