Shouldn't the default limit of change be 0? You get weird numbers if you leave the field blank.
I think it would make sense to have an alternative to Rate of Change, Limit of Change, and Time of Change in the form of check-boxes for Acceleration, Overdrive, Steam, etc. It'd also be cool to add other skills, like Venom, Devourer, and certain shields, like Procrastination and Damage Reduction.
In addition, maybe you could have Full Attack and Current Attack fields, for Dive and what-not, and a "Delayed for" field.