If you can build a light weight car, and comes in under weight, why not just settle for saddle packs or bricks, instead of shorty?

The saddle will produce a higher average voltage, however I'm not sure if the extra 75 grams could possibly put it at a disadvantage! Although maybe it won't be at a disadvantage, as I have heard the ideal weight for 17.5 2wd is around 1570grams. However with shorty, you can adjust weight bias, but seriously how often do you even need to change lipo position? I'd rather adjust weight bias with lead weights!