Isn't the hot questions list universal? Or are there some parts which are user-specific? If so, what are they?
The number of items in the MitliCollider is taken from the setting on the "Hot Questions" tab on stackexchange.com. If you set it to 50 items there, you also get 50 items in the MultiCollider.
If you don't set that option, you get the default 30 items.