5 days at this point? If you are going to do it I would do it now and not a day later.I actually only top potential mothers. Does it have to be topped and if so why? You could also just use LST or instead of topping do the stalk pinch method...this is where you pinch and twist the stem until you feel the pulp squish, when you release it the stem should lay over 90 degrees (sideways). Two days later the main stem will have healed itself where you pinched it and the side shoots will see increased growth while the main stalk is healing. This also means you get to keep the main cola on the plant although it will end up shorter.