Can we make Kog's Ult bonus damage scale smoothly?

Instead of having such a jittery power curve?

If it did 2.5% bonus damage per 1% missing HP it would reach 200% bonus damage at 20% health. If it did 2.666% bonus damage per 1% missing HP it would reach 200% bonus damage at 25% health. A good value would probably be somewhere between those.

This would be a buff to Kog's poke with no real change to his execute power.

One of the issues that Kog has right now is that when his W is down he really doesn't have anything to do provided he lacks low HP targets to snipe at. Smoother damage scaling would make shooting at foes above 50% but below 100% less of a waste of mana. Why would this be helpful? Well, before his remake Kog was getting pulled in three different directions: long range machine gun, tank buster, and artillery platform.

The change to his W and R reduced the strength of both his tank-busting (%HP damage over the duration of the skill was cut in half even taking into account doubled attack speed) and his poke (obviously). Putting a little more power back into his poke would allow him to contribute meaningfully even when his W is down.