At a year and a half, Lightning was about the same weight as your Droopy. I thought he'd never fill out. But boy did he! By about three years of age he'd topped 60 pounds, which is a good weight for him. I try to keep him in the mid-60s, but now he has to be on diet food to stay there. So be careful what you wish for! Stomps, on the other hand, has always been skinny, but he's much lighter boned than a basset should be. My delicate little old man is only about 45 pounds. So don't worry, Droopy will probably fill out very nicely.