Ballooning depends on the tire. I am not familiar with all types of tires so I can't really help you there. But, what I do sometimes is pick the vehicle up so no tires are touching the ground and give it full throttle. Then I try to estimate the amount of ballooning that way. And use the added radius as the ballooning value:
And I was actually going to remove the charger data. It's difficult enough to keep track of all the CD/tranny ratios and motors. The charger data really has no use there except to auto-fill the fields in
this page, and that list is really out of date now. ESC data would be even more irrelevant except to be able to compare specs side by side. It would be much easier to have this database driven, but as this is cleint-side script driven, data entry is cumbersome.