the thing is when a planet goes retro, it does not become weak or bad. on the contrary, it actually gains chesta bala.. just that its energy turns inward toward unfinished work. tiil nov 13, Mercury and venus is asking to think twice before speaking.. and so on in every matter Saturn till Dec 11 asking slow discipline to finish pending duties. and as i said, the impact depends entirely on which houses they rule in the birth chart & running dasha of the person.