Statesman, I'll add my voice to the players who are asking for sidekicks to be able to enter hazard and trial zones based on their effective instead of actual level. This is my number one grouping complaint. My friends and I will be playing in a group of 6 or more at least once a week, but it is basically guaranteed that two or three of us will be sidekicked because they cannot play as often.
Sidekicking is a GREAT feature for this game. Aside from the whole comic book aspect, the ability to sidekick is the most appealing game mechanic in this entire game (and that is saying something because we love most of the mechanics). It makes this the first game we can play together without needing to artifically limit ourselves by having "group-only" characters.
But the current restrictions in the game pretty much guarantees our group of 6 or 7 will rarely visit any hazard zones, and we will rarely do task forces, and we will miss out on most of the main group-friendly content in this game because we will never all be the same levels.
Please, please, PLEASE change the level restrictions on hazard zones and, if possible, task forces so that it is based on the effective level instead of the actual level.