So I've spent a few weeks writing a statistical analysis module for the Axe-Fx and using it to compare the actual amp with the Axe-Fx (part of the MIMIC processing). The results were surprising in some cases. Out of this I have rewritten the triode and pentode modeling based on the statistical comparisons. This also allows me to fine-tune the damping and bias points.
It is a subtle but noticeable improvement IMO. The amps feel and sound more dynamic and "spanky" to me.
Stock amp model, stock cab models, nothing fancy (especially the playing
)
www.fractalaudio.com/tmp/v10_spankin.mp3