i have moved towards integration of systems mainly driven towards directional option trading in BNF...added many points from my personal experience into my MM and moved away from MM which are available in open. squeezing on depth due to increased margin will help in wide range moves in BNF..or this we can say the volatility driven markets..many old tested systems particularly for intra will be gone for a toss in coming days..
off course many are experiencing this among my trading friends !!! revamped my MM ..systems are same based on MP ,100 % mechanical !!