Did you check the CAT was full following any flame outs?
Any fuel weeping on the outside body of the CAT?
The outer tube of these tanks is quite delicate, it only takes a slight compression to cause tiny
cracks in them. A friend has an Xcalibur & the guy who built it jammed the CAT in the nose
above the wheel well moulding causing a tiny crack in it. Only a very slight weep of fuel but
the fuel pump suction drew in more than half a CAT full of air after a few minutes stopping the
engine.
John.