the only thing i noticed when i had the nemesis center locked was when i turned hard on the grass the wheeles would dig in the grass more and try to flip. but on the track it power slid around corners, i didnt like it locked because i like to use it on the grass and not at the track where its slippery. i actually like when the center diff unwinds when you hit the breaks and go into a grass high bite turn and dosent flip and does a ninty degree turn and keeeps going. anyway this is just my preference but i did like the power it had when it was locked. i guess thats the trade off if its locked or not that i found.