The Muddy Bank
If you want to stay permanently below bcf 100, then why not try 'The Muddy Bank" a sharp opening where white tries for a quick mate with queen and bishop. Here are the first few moves
Or if your aim is to stay below bcf 75 then why not try
The Accelerated Muddy Bank
In the Accelerated, the queen's bishop stays at home and the queen attacks the entire black army on her own. Here is a classic game from two 'AMB' afficionados