I realise that no two people are exactly alike, but I would have thought we are alike enough that two people with short legs and long torsos are likely require a different set up to two people with long legs and short torso? I was thinking it would be interesting to put a figure on a frame and then change torso, arms etc to see if comfort/discomfort can be observed within the adjustable parameters for a frame size. Ultimately I was wondering if it could be used as a buying guide.