I know this is an older post, but if someone searches "Aerodyne harness size", this post is in the results--and the above response is incorrect. Please see the attached PDF.
MLW, chest strap, laterals, leg straps/pads is the correct order of measurements. It makes a huge difference. I have a used system on the way that likely isn't going to fit me based off of the information above.
2018_05_14_09_05_09.pdf