Nexus Blitz: the first event should only start after everyone has hit 6
Being behind on exp relative to the opponent is almost unavoidable in any mode, but it's dealt with by avoiding confrontation until you make up the difference. In Nexus Blitz, however, the first event forces confrontation right when people who haven't missed out on exp are hitting 6, while anyone who lost a trade and had to recall still hasn't unlocked their ult. The impact from this can be negligible in an event like BR due to the breathing space before fighting actually starts, but being first up in a prize fight without ult is like being the first to present your project to the class when the teacher knows you were out sick.
I know that it's only fair that pushing your opponent out of lane should reward some kind of advantage, but this advantage is too big. The difference between levels 6 and 7 is okay, but 5 and 6 is not.