Smilin'Ed
You may have missed the irony in my post, I suggested that a retrofit of a full on bypass for fuel was being actively avoided.
If you think something more than 'converting' a cooler to a heater is necessary here, we are in complete agreement. I also agree with the conclusion that we know precisely what happened to 038 and Delta. The 'mystery' of 'unknown' characteristics of Fuel is a dodge, simply put.
Will