OCMike -- I honestly don't remember what motor he is running in modified... probably either a 4.5R or a 3.5R.
As far as what I "did" to it... I just recommend making sure that you've preformed the one touch setup properly so that you know your ESC is callibrated to the transmitter, and if the ESC has too much punch for you in the default profile (#1) simply change the profile to #3 which is slightly smoother.
Once you've done this you'll have to adjust your drag brake for personal preference... but most people like setting 2 or 3.
Obsidian-- I believe those pro combos are simply coming with the standard GTBs and not the Spread Spectrum models. Sorry!
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