The main problem/negative I see is when the E bikes start hitting the A rides and egos begin taking hits. The arms race will really heat up. When the best riders in the group see their advantages disappear, watch out. When they are no longer first to the top of the hill or can't win the road sign sprints any more, what do you think will happen? They will go to e-assist as well. People will find a way around the assist cutouts, etc. They'll start souping up those motors as well. The group cruising speed of 28 is going to jump to 35. Then it will keep on jumping. You will have those hammerfest coal train pace lines flying down the road at 40+mph. That will be creating some dangerous situations. Absolutely no room for error/mistakes. Bear in mind that any performance increase will help the better riders more.