Interesting idea, but I'm more concerned with weight than distribution.

I guess I could pump gallium into my front frame tubes and then dump it also

BTW...If you have a crew, a idea might be to hook into a cool suit cooler until given 1 min on grid. A small recargable garden battery would be all that is necessary to run it.
When actually racing, the wind helps a lot to keep cool.

Then why worry if someone has a cool suit or not? We would all have to weight the same amount (1670 now, 1620? with the new engine package) if we used the same "as raced" minimum weight as every other class.