I use 4 small digital scales, all you're looking for with these is your front/rear balance and your left/right balance. With a pen and paper take all 4 weights FL, FR, RL and RR
add all four for your total weight
FL+RL / TOTAL WEIGHT = left bias % (should be 50%)
right bias = 100%-left bias%
FL+FR / TOTAL WEIGHT = front bias %
Rear bias % = 100% - front bias %
I run mid motor 2wd and my front/rear ratio is something like 33/67
It would be interesting to hear what others ratios are.
For 4wd I believe 50/50 f/r is preferable
With this method the results are easily repeatable and accurate and no need to worry too much about individual corner weights. you can also just use 2 scales and blocks to keep chassis level whilst you take each corner reading.
IMO use of solid bars, set up wheels etc isn't necessary
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