As a middle-aged, left-handed tweeter, I have had the opportunity to throw both the Storm IQ Tour and the Brunswick Magnitude .035. I am currently on Brunswick staff and have been for 2 years.
There are a lot of similarities between the two balls.
Both are very smooth, even arcing, bowling balls. Layouts were similar with both balls.
So, the shape is similar but what I like most about the Magnitude .035 is that it picks up just a bit sooner than the IQ Tour when I used to throw it.
I have also thrown the Magnitude .055 and I'm seeing that ball very similar to what the videos on the Brunswick website say about giving about 3-4 more boards of hook down lane.
I agree that no one will ever make another ball like the IQ Tour but can say, that the Magnitude is the closest I have seen to it and am glad that it is in my bag.