Glad you are liking it so far! As far as the brightness, the Cougar are proven to put out 4x the lumens over halogen, at the hot spot. Keep in mind you have a hard cutoff line now due to projector, so there will be almost 0 glare above the cutoff line, vs. a reflector will have some natural glare above their reflected "soft" cutoff... so use other cars with projectors to use as a template for your vertical aim by trying to capture a visual in your mind of where their cutoff hits on houses and fences as they drive near your house, assuming you live in a neighborhood and not too rural, but you know what I mean, lol, just try to mimic where their factory projector cutoff hits... I realized that I had mine aimed too low and once bumped up a little I'm good now!
And as far as more blue, uhm, yeah, halogen are only around 3400k (brown/yellow) and LED's are mostly sold in the the 5500-6500k with pure white at 5000k... so at 6000k the Cougars are going to have a touch of blue, which in my experience with other LED's does fade to more of a pure white as you put the hours on them, otherwise,the 6 sided tip bulbs I use now are definitely closer to 5250k and I really prefer that.