I switch defense back and forth... sometimes it's weak and cheery.... sometimes its standard. Since only a few of the lower tier players are using weaker defenses, and surprisingly the upper tier players aren't much at all.... well, once enough points build up.. it's difficult to merely farm wins. I can beat most of the upper tier teams depending on first strike most of the time (like all PvP), but why bother winning 7 out of 10 when I can win 12 out of 10 by just dropping 200 points? So I switch to weaker defense.. let others gain wins.. then switch back after a bit.
I'll hit 400 by the event end (just a tad short of 300 now), which is enough for me.