I have been at the controls of two jets, one of them a twin when the Life batteries failed and the jets were lost (neither jet was mine...just flying them).

I have never flown any kind of plane, heli...name it with Li-Ions and regulators that have failed and gone in, and I was an original PowerFlite pilot back in 2001 and have been flying Li-Ion since then with thousands and thousands of flights logged.

I'll never use Li-FE in my planes.

FWIW...

Beave