No, you're not wasting my time, not at all
Here is what I've been doing ( amongst playing with my 18 months old daughter)
First I made a new room containing elements that produced a lot of white spots with normal rendering.
After adjusting the CP to 1000000 I got this result:
http://ceciliabr.com/pics/testing_whitespots.png

After having tried different settings, and some settings which even my 12-core Mac Pro was able to process within reasonable time, I ended up with this setting:

http://ceciliabr.com/pics/Settings.jpg

and it produced this:

http://ceciliabr.com/pics/testing_whitespots-glossy.png

Then I tried the same setting om my kitchen ( which yesterday took about about an hour, but with this setting was done in about 30 mins.):

http://ceciliabr.com/pics/Kitchen_render_3.png

A lot better.

Thank you so much!

Cec