Mistaken to be a Martingale, Spider EA version 1.4 is a grid . It has a fixed lot size and good in ranging pairs like USDCAD. It can make a 100 % profit in one year time if done with reasonable drawdown. The version 1h is good especially in USDCAD. But you would need a big account to work on it since the reasonable drawdown could be a very important factor like in the last big decrease of the pair traded weeks earlier. The demo account ranges from 1700 to 5,500, recovery is only 150/200 000 USD in loss.
Spider EA is indeed not a perfect EA and somehow might need some modifications and improvement. You may diversify this to another pairs and another timeframes for it to better in time and make better order entry to avoid high DD. Back test any pairs individually/ start forward test on demo accounts using any combinations. You will be able to determine if it’s working good if it gives you at least 20% profit / pair / year.
Another problem found in this EA that you might want to develop is it was found out to be very dangerous to use it with trending pairs. Even if you tried to use a different strategy entry, the results are still the same. That means it is not safe to be working on trending pairs such as EURUSD but to ranging pairs only such as USDCAD. Try to develop this one and you can gave great results and big profits. Always remember to trade safely as safety is more important with quick profits but with high risks.