Hey Strick-
Your bracket is coming along pretty quickly.
As far as "alligatoring" is concerned, my experience with it was teh result of cold temperatures or not thorough mixing of teh catalyst.
Alan Viates writes about it in length in one of his books. However, for the time being...I thought these two links should be able to give you a clue as to what caused your problems.
http://www.fibreglass.com/trouble.htm
http://www.dsm.com/en_US/html/drs/ge...leshooting.htm