after a lot of great input this is where our proposed weights stand. (red numbers are the new ones) weights are generally based on size, build, and type. some types like ground and ice are generally heavy while others like ghost and grass are generally light. pokemon weights are generally not realistic. drowzee weighs 32.4 kg while a real tapir weighs about 300kg. a real tapir is maybe 150% the size of drowzee, but the weight disparity is extreme.
to see our previously surveyed weights/heights you can look here.
http://capx.wikia.com/wiki/List_of_Pok%C3%A9mon_by_height_and_weightpokemon heights are measured from the ground up except for snake-like pokemon. at the moment i am not proposing to change any of the already surveyed numbers, but, if you have any qualms with them feel free to let me know, so that i can be sure to address them down the line.