To give you more details, I have highlighted below some of your phrases that indicate why I think your answer was poor:
In short, your answer says "I don't know". But instead you said a lot of maybes/I thinks/logic says etc, as if you were trying to appear informative, but failed. If you don't know something regarding your business (Introducing Broker) then you should either find out from your "boss" (Dukascopy) before writing anything, or say you don't know. It just appears that you are trying to provide help here in order to acquire more clients for your business, but your answers are not factual nor informative, and instead are a lot of "maybes".
I'm aware that the Dukascopy MetaTrader platform is still in beta, but you could still have answered based on your experience of the beta platform, but judging by your answers, your experience of the Dukascopy MetaTrader platform is either little or none - not enough to answer the following valid questions about spreads:
1. Are spreads any different to spreads on the JForex platform?
2. Are spreads better or worse than at other brokers?
I replied because I also wanted to know the answer to these questions.
I would also add this question about execution, and I'll give you a chance to answer it: How does order execution duration on the MetaTrader platform compare with execution on the JForex platform? I presume there would be a bridge between the MetaTrader server and the JForex server, so I'm thinking there would be some delay introduced by the bridge.
I'm asking you this because you have put yourself forward as a representative for Dukascopy, which means that you should know a lot more than myself and other traders here about Dukascopy.