The towering system that is currently in place is fine, but what is causing problems to some players might be the way players are using the system that is currently in place. If you change the hrs required for people to get hats, i dont think it will stop people from hat chasing only prolong their journey a lil bit.
Personally I dont have a problem if it changes or stays the same as the only time I go into towers is usually to PK or to buy rare hats like the white halo hat in castle that i didnt have in my collection.
The ones that would be impacted the most would probably be the new guilds trying to tower. Theres 7 towers around the map and if 3 are held by 2k+ tower guilds and 3 by hat chasing tower guilds that only leaves the new noob guild with mod tower as the only realistic tower to take.