[Ducati] Brake Problems

[Barry]

I race a Ducati 748, with stock Brembo Brakes and master Cylinder. I 
have had a night mare of a time with the front wheel slowly locking 
up the brakes on the front so bad I almost high sided today, and 
could barely get the bike off the track. I went through the brakes 
with some good helpful  riders at the track who have much experience 
in this problem. We took the brakes apart sanded the glaze off the 
brake pads, I pulled the calipers apart and checked the seal it is 
good. The system was cleaned right up , was bled both sides and 
managed to get a good feel back in the front lever. I managed to get 
the next race done, but I could tell in the final couple of laps I 
was working hard pushing against the front again, the brakes didn't 
totally seize up this time, but the front wheel is very hard to turn 
over again. I have 2 sets of wheels, and I had the same problem with 
different rotors yesterday, I assumed it was the rotors on my 
practice set, but this is obviously not so since my race wheels have 
been affected as well.
Question? Could this be a master cylinder problem, every thing else 
has been given a thorough going over. Is there something that has 
been over looked.

Barry