Yikes...breathe everyone. Please keep in mind that all of these things are First World Problems! I wanted to know an answer to a question. I tried to find that answer on my own, but couldn't. I therefore asked the question. It felt pretty straightforward to me. Maybe I shouldn't have? It seemed fairly basic and benign to me at the time.
I wasn't implying anything bad about RR's website, that they have a brake bias conspiracy going on, or that they're bad people who are preying upon their customers. To my knowledge, I have yet to say a single negative word about anything related to them. I'm not trying to pick on them, or anyone else in the brake business. I have friends who work at or sell StopTech, Brembo, Race Technologies, PFC, etc. We all visit each other at trade shows, go out to dinner, email each other, etc. It's all a pretty friendly atmosphere (as is most of the aftermarket). Also, many of the people who work at these companies have worked at one or more of the others. I was the Sales Mgr. at StopTech for years, we have a former PFC employee here, one from Wilwood, etc.
I also have nothing against "the little guy," "the new guy," etc. When I started at StopTech in 2003, we had about 10 employees. We were going up against all of the big boys with a completely unknown brand, a handful of brake kits, and very little budget. I've been there, and it wasn't easy.
When I post something about our products in a technical forum, my expectation is that people are going to ask me every reasonable and ridiculously unreasonable question under the sun about that product (for the record, my all-time favorite is, "Which stops better, red or black calipers?"...yes, someone really asked me that once

). That's okay though, because that's why people are here...to learn about something with which they are unfamiliar.
As I said in my last post, I don't think one product is right for every person or situation. That's why we sell different types of brake kits, brake pads, etc.
Thanks for the kind words about our products and customer service. We bust our butts to do our best.

I don't get to visit this forum as often as I'd like, because we are involved in so many markets. I do my best to help people when I do make it here though.
Oh...for reference, if you click on the technical specifications tab
on our product page and scroll down, the piston bores and other specs are there. It's going to look like a mess due to HTML tables issues posting here, but here it is:
Caliper
CP8350-2S4L/3S4L
Weight no Pads
4.8 lbs.
Piston Sizes
38.1mm x 2
41.3mm x 2
Piston Area
49.56cm^2
Inlet Thread
M10x1.0
Mounting Type
Radial
Mtg. Centers
152mm
Mtg. Offset
44mm
Pad thickness
20mm
15mm
Disc
CP3862-104/105GA
Type
2-piece bolted
Weight
10.71 lbs.
Diameter
299mm
Thickness
32mm
Radial Depth
43mm
No. of Vanes
60