Since Thursday, I have been running Z5 on a small live account. Friday, I noticed the following in the log:



At the same time, in the MetaTrader EA journal:



... and the general MetaTrader journal:



The same trade was entered three hours later and concluded successfully.

I thought the MT4 plugin handles requotes automatically? Was the requoted price too bad so that the script simply discarded it?

Apart from the fact that I really should be trying this on an ECN account, I was wondering how this will affect the performance of the trading system. The script apparently noticed the failure, but does it compensate in any way (or does it even have to compensate)?

The plugin handles requotes only insofar as Zorro is notified about them and can then decide in the script what to do. The Z scripts do not enter trades again in case of a requote. Requotes can thus indeed reduce the performance.

For preventing requotes, edit zorro.mq4 and set the "#define SLIPPAGE 10" line to a higher value, such as 30 or 50 instead of 10. In the next update, this value can be determined in pips and will adjust to the number of price digits by the broker.

Thanks, that's what I was looking for ...