Thank you GT.
Another calculation:
Vaporeon
CB 36.61-43.30%
LO 31.92-37.72%
none 24.55-29.02%
The short version: CB max Atk CAP7 can not 3HKO Suicune, Donphan, Hippowdon, or Forretress with Earthquake. LO max Atk CAP7 can not 3HKO Swampert or Dusknoir. In addition, there are many pokemon that CB max Atk CAP7 can not 2HKO with Earthquake.
The addition of Earthquake to the movepool only really affects steels. As for them, I feel that not having a way to threaten steels is a death sentence for the scout concept. As soon as you switch in CAP7, your opponent will go strait to a steel type every time, probably Magnezone. If CAP7 gets any popularity on the server at all, you won't need a scout to know your opponent has a Magnezone.
My point is that not having Earthquake, while increasing the amount of counters, will decrease the amount of information you are likely to gain.