Recommendations to clarify? The "old" World Challenge rules (the ones I used to create Modified Touring years ago) read:

Competitors may choose from one of the following front brake systems:
1) Stock OEM braking system
a) Unmodified Antilock Braking System (ABS) is allowed.
2) Aftermarket braking system
(description of allowance)

I guessing the current wording comes from the 2009 PRR for World Challenge.

Where on sccaforums is this discussion? - GA