John, I'm not sure how you did that edit, and I'm also a little unfamiliar with how much editing you CAN do to T2's, but can I suggest a change in what you did?

To my ears, it basically sounded like either EQ or a filter cutoff change had been applied to the entire patch (forgive me if I'm wrong). This, although it warms up the sound a bit at lower velocities, had the effect of robbing all the highs when it WAS played hard...

Now, if you did this with EQ, there's probably not much you can do, unless to create a two or three way velocity x-switched patch that removes the high cut as you play harder. But if you did this by winding down the filter cutoff, you MIGHT try increasing the patch's velocity to filter cutoff setting, so as you play harder, the filter opens up a bit more, and gives you back the sparkle at high velocities.

Could you give this a try?
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An arranger is just a tool. What matters is what you build with it..!