I seriously wish I would have seen these videos you posted. but its too late, I already purchased the drilled and slotted rotors. We'll soon find out if it was worth it or not.
I havent purchased brakes just yet, but I will almost 100% be going with R1. I've read great reviews about the exact ones I plan on buying, and feel pretty confident about them. I can let you know when the time comes, if you want?