[Dean]

This is one of those areas where they should just adopt the SP wording to avoid confusion. I agree with you, but if you read the rule literally, there is no provision for removing the shields. And unlike SM, ther is no provision for making minor mods to allow a legal mod.

The SP wording is very clear...

15.6 BRAKES
Vehicles may only exceed the allowances of 13.6 as specified herein.

A. Any brake line, single or dual master cylinder, vacuum brake
booster, or brake proportioning valves may be used. This does not
allow multiple separate cylinders, but does allow for any single,
dual-circuit cylinder. “Safety brakers” and units such as the “Brake
Guard System” are permitted. ABS braking systems may be disabled,
but not removed; brake boosters may be removed or added.
Air ducts may be fitted to the brakes, provided that they extend in
a forward direction only, and that no changes are made in the
body/structure for their use. They may serve no other purpose.
Backing plates and dirt shields may be modified or removed.

B. Cross-drilled and/or slotted brake rotors may be used, provided the
replacement rotors have the same dimensions as standard rotors
and are of a standard-type construction and of ferrous metallic
material. This does not permit the use of a two-piece hat/rotor
assembly unless the standard configuration is two-piece.