I'm headed toward a new Tallboy with the R package and a wheel upgrade. I might make a few other upgrades at purchase time and I'm wondering about these brakes. Anyone able to report experience with them, esp. the 2012 versions? Reliable? Loud? The brake forum indicates potential squealing but some people seem to think they're fine. I'd probably upgrade to the XTs. The shop will give some credit but it still would cost a bit. I'd like to just ride them for a while unless they are total dogs.