No i am not.
Who told you that EA's are illusive ?
They are not but the backtests results can be and that is the issue when they are presented as trustworthy.
Who told you that EA's depend on backtests ?
No Mr. Aragon does not have a point because the data was specifically produced for his broker (which I also use myself) and time-zone specifically as you yourself have pointed out that TickStory or Tick Data Suite does (just as other tools also do).
Furthermore, in order to verify that data was syncronised, the tick data was compared to broker data as well, and presented to Mr. Aragon as he well knows.
This was the first order of business before any of the many back-tests were carried out.
Also as @Marco vd Heijden pointed out, the back-test results can be very misleading, and for this reason I analysed the results trade by trade and outlined the various failings to Mr. Aragon, providing Excel sheets of the results under different stress conditions and how they could totally destroy the EAs results.
I went to great lengths to analyse the workings of the EA (several EAs actually) and provided all my analyses to Mr. Aragon completely free of charge. If he refuses to accept the information provided by someone much more experienced and qualified than himself in these matters, then it is totally up to him. There are many other qualified people who can confirm my findings if he wishes, but I doubt they they will put in the effort and do it for free.
EDIT: PS! When something is for free, people do not consider it of any value and usually disregard it. Had he paid dearly for my services, he would have looked at it very differently.
EDIT2: By the way, ALL the back-tests carried out were profitable,
but what is important is the analyses (not provided here) done on those results showing how they
are completely misleading:
You don't pay for tick data. It is free-of-charge. Anyone can download Dukascopy tick-data totally for free.
You pay for an application like TickStory or Tick Data Suite because you don't know how to code you own application to carry out the process, and so have to pay someone for that application.
You don't pay for tick data. It is free-of-charge.
I know exactly what you are talking about, and I don't need to do any such "homework". For most instruments, especially for Forex, all the quality data available (and not just Dukascopy), can be obtained totally free, provided you develop your own tools for the job!
You can even import MetaTrader 5 data (into MetaTrader 4) if you know how to code it!
Obviously, if you don't know how to code the tools yourself, then you have to pay someone for it!
Who told you that you have to pay for historic data ?
What makes you believe that paid data has any advantage over free data ?
When need to backtest any EA, it's important to test on your broker's own history, third party data can not tell they story as your EA will run on your broker's tick data not on 3rd party.
Need to understand
Modeling quality doesn't mean EA quality it means broker's tick data history quality related to M1
That is an incorrect statement. Specially in the case of Forex, as there are only a few liquidity providers which are used by many brokers, so for non market maker brokers, historical tick data is very similar between brokers.
Also, if an EA is incapable of dealing with the minor differences between broker data, then it is absolutely guaranteed to fail in live trading and needs to be scraped.
PS! For Tick data, modeling quality is non-applicable as it is real tick data and not generated (modeled) synthetic tick data based on M1 data. Modelling quality simply does not apply in this case!
Testing 3rd party and live practicing on broker doesn't makes sense, If your broker show a big chart gape what you will do depend on backtest?
So it's important when backtest also include big chart gaps to fix EA for any future threat
On 15 Jan 2015 Flash regard CHF few top brokers stopped traders access to close their trades so a lot or good LP's in brokers circle wouldn't help, it can happen again so must need to prepare like this
Modeling Quality applies it tells if broker history missing , it's a key point to test in history , What EA will face difficulties on live you must need to test in that way. Third party will not be responsible in any loss.