I've had investment and swing-trade accounts with TDA since it was Datek. When circumstances allowed I spent time with RTI and MBT for active equities trading. Now that I'm "retired" and have the time required to devote to intraday trade equities and futures I'd like to know if there remains any validity to the claim of TOS data or software being laggy? If so, has it been determined if it were the actual data feed or the software as culprit? The reason I ask is all the visual examples of the, at the time, undeniable lag is from at least two years ago. Many of the strictly verbal or written claims could be attributed simply to the bad taste that some may have been left with during a "bad period" while TOS was in transition. I sure would like to keep consolidation to one broker but not if it means at the expense of trade performance. Any opinions appreciated.