Talk:2019 Spring Update/@comment-34918040-20190504091237/@comment-31458611-20190504164528

Yes GBM screenshots help a lot. One restriction, though: only a single max or pro parameter should be increased (no matter by how many levels) between two consecutive shots.

Example: two shots, one for 0500-1010 and another for 0503-1010 roughly give the weighting for nitro, whereas one for 0500-1010 and another for 0502-1020 tell zilch (as nitro, top speed and acceleration all changed at once).

The 4 percentages can be immediately backcalculated from these 4 shots, keeping pro constant: 2. max = new m, n, o, p (new = with any upgrade) 3. max = new m, new n, new o, p; 4. max = new m, new n, new o, new p.
 * 1. max = any m, n, o, p (all < 5);

The weighting can also be accurately extracted from only 3 shots, this way (with max upgrades kept constant): 2. pro = 0p5p (gives accel and tps); 3. pro = 5p5p (gives handling, and the three give nitro).
 * 1. pro = 0p0p;

There are many possible variations, of course.