Well, usually the back hump is extended on claw grip focused mice so that you increase aim stability - that itself will come at the cost or micro-adjustments. If you really want the freedom for microadjustments, you should consider fully switching to fingertip grip IMO. Otherwise, most other claw grip shapes will increase the feeling of the hump in the hand.
If you want a middle of the road hump/shape, there's the GPX and Vaxee XE that should be much more forgiving in shape than the XM2we, Lamzu Atlantis, or Pulsar X2.