Quite right rembrant. I have seen people get screwed by MM's.
In this situation if you were to put in offer of 200k at say 10c, the 50k would get filled then the MM would come back with an offer of 9c. Whenever a MM gets filled entirely the supervisor will check to see whats going on. If he sees someone there with a large block he knows they want out quick and will take advantage.
