How to fix role distribution (a.k.a. support every time)
Instead of looking for a first available spot within picked roles (top/jng, mid/adc, mid/support, fill, whatever it is), roll what you are queuing for. This roll is made instantly and then you are queued for one role only.
Example 1. I choose mid main, support secondary. With a 66% chance I get mid, 33% to get support. Example 2. I choose mid main, fill secondary. 40% chance to get main role, 15% chance to get one of other roles. Example 3. Fill main. 20% chance for each role.
Thoughts?