Something I have been thinking about regarding unbalanced power tubes is, does it matter which side the hotter tube is in when one is producing more gain than the other? Assuming that the power tube closest to the phase inverter is going to produce the positive side of the waveform, should it get the hotter tube? What are the factors governing this relationship? Simply stated it would seem that the stronger tube would exert more control over the voicecoil and cone so this should result in something audible. Has anyone swapped the two to see if it can be heard?