Yeah scaling with floaters so far is not really 100% accurate, i've been fiddling around with it for the past couple of days, will hopefully include it in the update :)
Random is already done, coming in the next update :) the UI has been tweaked a bit to give more space to the new feature, too. As for the scaling, are we talking about scaling just for floaters ? or even Blends too ? I wouldn't give the user that "power" for Blend mode, as it might screw your mesh very easily depending on…