Compromising Last minute banners strategy???

With a couple of days left for both hero fest and sacred memory I've decided to wait until the last day and will snipe greens for another BIke (hopefully a better IV to merge my current +spd/- atk into) from hero fest banner and then remainder orbs shifted toward sacred memory for Eirika (spare 5* tharja ready to fod). Of course it's all on paper and RNG works in mysterious/sometimes cruel ways but I have 80 orbs saved hoping to get at least BIke before jumping into red hell for Eirika (the new seasonal banner will last a month anyway so not worrying about it now because there'll be plenty of time to save up toward the end of the month when it's time to compare it to the next legendary banner)