My concern isn't the game's throughput at all. It's routers along my route I feel are getting congested from traffic demand during prime time.

If the router is congested, my speed really doesn't matter. The router is choking my throughput and dropping packets, which is what some call lag spikes.

I changed the MTU temporary because I was bored. As stated, I didn't have 2002 errors. It was just for the hell of it.