RE: Anything you don't like about your Summit??????
Stop at the hardware store and get a can of that spray on plastic coating, works great for coating the cables, and lasts a lot longer than the stufff that's on there when you buy it.
I spray it down in those tubes too, it gets rid of that noise. I also spray it where the cable stop hits the bracket to keep it tight, where you slide the clip over it. Get it all down on the inside of there, it'll be real quiet, and absolutely no metat to metal.
It's the stuff used to color coat tool handles, or protect from rust. You can get green or black.
"In heaven, even the fish have antlers"