Regression Channel and market replay question

[shazzmoe]

1. I'm working on a new strategy and would like to be able to determine whether a regression channel is angling up or down. I've looked into using Slop() but this doesn't give me what I wan't (I assume because the slop function is comparing the value from the prior bar, which could be drastically different from where it's currently plotted)
2. I've been downloading market replays to run my strategy however I'm noticing some differences in data between historical tick data loaded from zenfire and the data the market replay throws up. Is there any way of knowing which is more accurate?
3. Is there a way to down load a week of market replays at once for one symbol?

[NinjaTrader_RyanM1]

Hello shazzmoe,

Slope measures Rise / Run. Rise is the change in Y value of two points. Run is the # of bars parameter specified in the indicator. You may want instead Rising() or Falling() which looks at the current value and compares to the previous.

Market replay is a simulated real time feed. We expect there to be differences in chart appearance with real time data compared to historical. Please see the following link, then: Understanding why a chart can look different after reloading historical data from the server

http://www.ninjatrader.com/support/forum/showthread.php?t=40878

Unfortunately market replay is downloadable one day at a time only.