Were 20mm Hispanos used on P-38's Reliable?

[BadAim]

Funny, I've never read about any problems with the Hispano in the P-38, but I've read several times about problems with freezing at high altitudes in the Corsairs and the F6F's. I suspect that part of this is due to the much more temperate climate that these birds were flying in late in the war, and also the south pacific air war tended to be fought at lower altitudes.