Just FYI;
It is no longer possible to see an iceberg order on any system I'm aware of. Even bloomberg at 3 grand a month no longer shows them. There were so many complaints from big volume buyers and sellers, that the exchange no longer gives that info out. Couple that with multiple exchanges drawing down, it makes guessing at the size of block bids and asks difficult, if not impossible.
I don't know if you care, but it bugs me.
Cheers
PC