Twin Shadows active cd buff in Summoner's Rift

I think it could be intressting to give Twin Shadows a buff in the direction of the cooldown of the active. Currently it's still located on 120 seconds what kinda extreem for the power the active provides. I don't want to overbuff it but moving it to the default 90 seconds cooldown could be really nice.

To compensate the cd reduction when the ghost come back can be reduced to 30 seconds or something so you get a maxium of 60 seconds cooldown reducement on it. This would be a buff for about 10 seconds while actively using it.

So whe will get a active like this:

UNIQUE ACTIVE - HUNT: Summons 2 invulnerable ghosts for 6 seconds to seek the two nearest enemy champions. If they touch an enemy champion, they slow their movement speed by 40% and reveal them for 2.5 seconds. Ghosts that fail to find a target return to the wielder, reducing the item's cooldown by 30 / 20 seconds each. 90 / 60 second cooldown.

Here a list from the current active duration (didn't include trinkets):

• < 45 sec cd
• 45 sec cd
• 60 sec cd
• 90 sec cd
• (*) 120 sec cd
• 180 sec cd

** will have 120 seconds (from 180) cooldown in season 5.*