That might be so, but where do you draw the line. Would you be able to recognize a "perfect application". Is your deity always drawing the line perfectly in all of its actions everywhere all the time (depending on its level of power, it could be in every single event in the observable universe).
He is actually very free to choose between retribution justice and compassion, which is why the following are ultra important.
1) Pray for yourself and others, prayers impact God's decisions.
2) Seek intercession of God's chosen, they pray for you and teach you how to pray to God and help you in ways that God begins to have more mercy and compassion side and does away with his justice.
3) Don't talk to God like he is Calculator, he does what he wishes, he can if he wishes be just and deal with you justly and there is no evil or injustice on his part or he can have compassion on you and forgive you and forbear you and grace you greatly, and there is no injustice on his part.
The fact is if we try to rely on our own deeds, we probably going to fail, but it's good to do good deeds so that God his chosen and Angels have something to work with but don't rely on yourself, rely on God and his compassion and intercession of Mohammad (s) and his family (a). But 4:
4) Strive to do good deeds (create light) and fight off the evil (give God somethings to work with)
5)Recite and ponder over His revelations especially the Quran as it has a healing impact and Angels work with it to heal you as does the holy spirit and makes you love God over the deception of Iblis.
At the end, when God is going to be just or when he is going enter in his mercy - I don't know, there are guidelines, but at the end, he is entirely free, which is I believe Du'a (Supplication/prayer) is very important in that you don't address God like a computer that you tell him forgive me and he has to forgive you.
No, don't ever do that.