I disagree with your idea. There will always be people who lag on an online game. You are just going to have deal with it. I have come across many players that lag at the spar arena in the past, however, none of these cases were bad enough to prevent them from participating in a spar. Considering the range of idevices(generations), lag will always exist. Each device runs faster or slower than the other, Thus, lag is created. Anyone should be able to compete in a spar. No one should be singled out due to the device they use.