May have been tighter? but did you reduce the surface contact area of the two surfaces?
Proof comes from reduced temperature. And that was an obvious thing to check and verify.
More and more I get the impression that thoroughly covered remarks, repeated in long long threads about wise tips to reduce problems, get buried on this forum or get ignored. Either way it makes attempts to help rather discouraging...
I'm referring to the ABSOLUTE NECESSITY of taking a few minutes, removing the breaker panel in ANY AND EVERY rig and inspecting and tightening all connections. Burned out umbilical reports keep popping up from experienced forum users who seem to believe they pioneered the discovery and the fix.