[s-cars] Brake Kits Revisited

[Chris Holinger]

Looking for a little guidance with the next move:

Finally going to to pull the trigger on the ECS Stage 2 kit which includes:
³Four piston Porsche 993TT calipers with custom mounting brackets wrapped
around 12.4"(314x30) OEM one piece rotors. Complete kits include all
mounting hardware, Porsche fasteners, Hawk HPS (high performance street)
pads, OEM slotted and cadmium coated rotors, stainless lines and ATE Super
Blue.²  Here are my concerns:
1. I have the BIRA system 3 brackets; does this fit into the equation?  If
so, where? 
2. There is no price difference between the slotted and the slotted &
drilled rotors included in the kit, why not go for both slotted & drilled?
Is there an argument against drilled rotors?

Anything else I should be aware of?

Thank you all for the help sliding down the slope,
Chris Holinger in Chicago
Œ93 //S4