If your stock trans was shifting "hard" before the rebuild it was most likely due to it having some issues, so now if it is fixed properlly it shouldn't shift like it did before. You got to remember these trans were programmed to have long soft shifts so no one would notice it shifted in case someone was drinking coffee in your passanger seat. Even with the transgo shift kit you aren't going to get neck breaking shifts, after all they aren't in the busniess of breaking things. Aamco is a different breed of transmission builder. They have their own rebuild kits that consist of nothing. They for some reason get different rules on what a rebuild is. They can charge extra for a band, but the rest of us have to cover every wearable componet, which is how it should be. Are you sure you got a rebuild, and not a repair? Most Aamco's don't do full rebuilds, unless you pay over 3 grand.