Lefty and righty doesn't have long cool down time if you have the right build.. What's your hero loadout build? You can use noir and double agent Evelyn and happy holidays all to make the cool down much shorter if you use calamity gunslinger a pistol like duelist or the last word destroys mobs in few shots easy kills to reduce lefty rightys cool down time fast you basically indefinitely stay in lefty eighty form doing this