The hardest thing for me is gettng orders for the .0001 to .0005 or so.....I have to call in to trade more than 100,000, and I lose precious minutes that way. This online limit is a pain.
On a few occasions I put in multiple orders for 100,000, willing to eat the extra fees, but yesterday the brokerage called me and said that was a problem with their compliance / risk section, and my trades ran a risk of being rejected. They said that the multiple trades could be "stock manipulation". LOL - I just sighed and told them that until they raised the limit, or made an official rule against multiple trades, I would proceed as usual.
At least I don't have the "physical paper" problem (or whatever it is - extra fees) that Ameritrade clients are having.