So, I took my calipers off and, despite use of Ti shims and brake cooling ducts, my piston boots melted and, I presume, caused the pistons to stick, which was what was giving me the sound I was hearing.
The good news is that the pistons hadn't cracked and they still move.
The bad (good?) news is...my track skills apparently now exceeds the capacity of my front brakes. For the record, my rotors still seem OK.
The way I see it is that I have four options:
1. Rebuild with OEM (seems pointless...will break those too in short order)
2. Get an upgraded rebuild kit F&R (RB or Turner...RB seems better) ~$700
3. Get the RB rebuild kit and upgraded rotors F&R ~$2200
4. Get a stoptech BBK F&R ~$5500 (really outside my budget right now)
I am leaning toward #3 but I suppose I could do it incrementally...#2 then #3 later. I just don't know how good the RB upgrade is...i.e. How much margin is added between each option. Will I run into the limit with the RB stuff next season? From what I have read, everyone is pleased with the Stoptech stuff so that is a no-brainer...except for price.
Anyway...I guess what I really need to know is...is the RB stuff worth pursuing...TIA.