Thanks for the reply! I did read that documentation before but it seemed like many people with good results ignored keeping the scale the same. For example this vid: https://vimeo.com/91709811 - container size was 100x3x30 in cm i assume... so his catamaran should be like 25cm big, however it still looks like its bigger than that. But aside from that, if I scale my boat up from 2.5 -> 250 units, My container will need to be really large as well. However I doubt I can fill that large a container with mvs-.05 particles. So I'd have to increase mvs ..but wont that just make it the same droplet to boat proportions I have now? - just bigger?