There is at least 2, and likely more. But if I knew, I wouldn't have a problem doing the listing, now would I?
ETA: also, what's this about scaling down the strength? Option A doesn't require it. A Colossal creature with strength 30 would still need to be put in the FBS (assuming the other conditions didn't prevent it, etc. etc.)
As per the above, I think the FBS will be made worse without the size cap. When we introduced it, the FBS had 14 members. Now, some of them probably won't make it back because of mental control, and I'm more strict than I used to regarding strength. But many other suggestions have been added since, many who got dinged on size alone. If as I fear the FBS suddenly ends with 15+ entries, it'll be half as useful as it is today.
ETA: and in case that is not obvious, I have the same problem in reverse with B and F: an FBS with only 3 or 2 entries is not as useful as one with ~6-12.
Grey Wolf