The 3389 sensor has 32 frames of smoothing above 1800 DPI, That's why it doesn't feel good with XIM if you play with high DPI & I only know of 1 mouse with the 3389 sensor that let's you disable smoothing (Endgame XM1)
I'm currently using the Endgame XM1R with the 3370 sensor and it has no smoothing all the way up to 19000 DPI.