Back when I raced my T-type 3 time a week, I measured each corner on the track scale one tire at a time and recorded the numbers. I also did a front and a back and did with airbag air and without airbag air on the Right and left rear tire before and during power braking/turbo spooling.
The data showed the Airbag preloads the right side (and unloads the left) so the weight is equalized during launch. If the Track scale is level with the surrounding pavement, you should be able to get good side/side data. If its 1" or more above/below the surrounding pavement, front/back should be good but individual tire data might go wonky, so you'd have to do front, back and the entire sides and calculate the individual tires.