[GaryVoshol]

If the minimum match separation parameter is set too high, then there will be more repeats of teams seeing each other in matches. For example, in that 36-team event, if minimum match separation is set to 6, the exact same robots will be forced to play in matches 1, 7, 13, 19, etc. (I wouldn't be surprised if the software has limits that wouldn't allow you to enter too high a value in the parameter.) As in the example of the 22-team event, to get more mix in the matches, the minimum had to be set low and allow back-to-back matches.