If your adding more than 2000K shares per trade than daytradz.com is cheaper than IB.
They have a per ticket charge with a maximum charge per trade and give back the island rebate.
After a lot of research I have found tradescape to be very good for people trading less than a 1K shares at a time with over 200K shares per month.
If you trading larger size blocks on Island per trade than daytradz.com is the one to go with.
I used daytradz but now use IB because I want to trade both futures and low shares per trade so IB is better for me.
