Clarity for Kayn's passive

i really enjoy playing Kayn . his ganking paths are amazing and almost unlimited. that being said, i find it very frustrating trying to transform into one form and having to wait 3 mins because i auto'd the melee sup more times than i did the adc. i wish there was a way to help clarify which version of Kayn i'm more stack towards. I know i can just camp bot lane if i really wanted the assassin or top if i wanted the tank buster form, but that leads to the gameplay becoming too predictable. not to mention, if im camping top to get tank buster, i lose dragon pressure. if there was a way to check how much of which form i have i can see that yea i can gank top and still be able to go assassin. it could be something as simple as the wheel next to his portrait that fills up and changes color depending on whether its more melee or more range champs, OR (and i think this one would be cooler) his weapon would change color.