Good to hear about the problem going away. We now know it was the MCs.
Tilton is steering you toward smaller MCs because they feel the effort required is to high, as I thought it would be! Me, I would be leaning more towards the wilwood size recomendation, a little less rear bias then the latest tilton recomendation (still crank in some front on the bias bar about 15% to start) with a large increase in pressure (or you can look at it as a large decrease in effort required). You can go back to my post on 11/8 at 2:30 for more sizing options.
Do you have one of these:
http://www.autoanything.com/brakes/61A3154A0A0.aspx
Tons of places sell them. A local speed shop or other automotive place should have them. Invaluable tool and when you think about what you are spending on MC's, a cheap tool as well!
While you are waiting on your MCs go and properly bed your pads!