A request for a tiny possible xerath ult change?

No, this is no complain whatsoever, and i am just wondering about how xerath feels.

I am indeed Aware he is in a great spot now, not op but not weak aswell, pretty decently balanced, with (in my personal opinion) exception for his ultimate.

As we all know, it refunds 50% of the cooldowns if you do not fire a single shot, but that Kind of feels very frustrating as a xerath Player, if you, for any reason (cc, death, accidentally clicking) end your ult after maybe one or 2 shots, ecspecially lategame, and Need to go through the full cooldowns.

Sure, as he stands now he is very great, i daresay nearly perfect, but would it be good or bad if his ult was given a Little forgiveness for a premature ending?

i had in mind something like this: He refunds 50% of the cooldowns upon firing no shot. for every shot fired, said bonus gets reduced multiplicatively by 33 / 25 / 20 % for every shot fired.

what this hypothetical opinion based change would mean? it would give his ultimate more forgiveness depending on how many shots you fired, for example, if you are lvl6 and use your ult and fire only one shot then end your cooldown gets reduced by 2/3 of those 50%, and only 1/3 if you fire 2 shots. and the factor of division shrinks when you Level it up since you get more shots, meaning at lvl 11 your 50% gets reduced by the factor 1/4 with every shot and by 1/5 at lvl 16

NOTE: This is purely hypothetical thinking and i am only gathering critique and opinions, im not requesting this change legitimately. this is all theory and discussing over how it would affect xerath.