Hello. After a few years I'm returning to the trading arena. When I traded before it was solely OTC; I've noticed a fundamental shift to trading listed issues in the past couple of years and would like to learn how to do so in order to expand my skills. In the past, I stayed away from listed issues because of the specialist and slippage. With OTC and Level II software, I merely click on an ECN and - presto - I've bought the shares. I've read about Direct + and I'm wondering how effective it is. Are executions instantaneous? Is it very effective in preventing slippage? What are some other means listed traders utilize to prevent slippage? Thank you in advance for your comments.