Without going into detail, you are just plain wrong. The interpretation was correct in that it would be up to 30% increase from their estimate values. This is from an actual phone conversation with KnC and not speculation.
I also have exchanged communications with Marcus. To quote their website as of a few months ago before the illiterates harped on this point to no end (and now again).
An additional gain of 30% more hashing when the advanced algorithms provided by ORSoC are applied.
This was from the day they announced the Jupiter, hence no reference point. If I had to guess the gain would be due to pre-computing K+H+M in the prior cycle since all values are known ahead of time.