If you seriously want to change the roll timing, it's simple:
- Show up to every Shady roll
- Talk to everyone there; learn who doesn't want a longer roll (and will break the agreement if you try to change it)
- Convince those people
- Get a longer roll
Again, it's very simple ... but of course simple doesn't mean easy.
Alternatively you can do anything else you want. You can rant and rave here until you're blue in the face, for instance. But it won't do you or anyone else any good: if you want to change the agreement, you have to put in the effort to do so "on the ground".