When applying narcotics to your knocked out giga use your dododex app beforehand to find out how low to let it's torpor drop to apply the suggested nacortics all at once. Then all you would need to do is sit and watch. it would also be a good idea to have extra narcotics/tranqs you can never be overprepared!
I dare you to raise one!! They are savage if you got two high lvl parents (about lvl 140ish) and you get imprinting on it. The thing will become an adult with about 230% melee and basically one chomp any bronto!!! But on the down side you loose your job and your girlfriend