I personally don't use BCI, but if you're worried about the data it's returning
I'd be going back and looking at the data source. Remember if you're importing
data intraday the results will vary and because the algorithm for BCI is
unknown you can't verify it.
Speaking of data Yahoo data is useless IMO, so I use Quotetracker through a
Commsec account to get live datafeed into Best Charts. Anyway that's beside the
point.
I'm currently assessing the MFI indicator as to whether it can generate some
early buy signals (basically when the current value bottoms out) compared to
the optimized signal it's giving.
As far as the optimisation question goes, I personally don't do it daily. If I
see that the otimisation has created a good set I will try and use them as long
as possible.
Rob