Cool! It always seemed that certain amp models had more or less trem effect, some self-ducking etc based on how they were set etc, as I can guess that bias trem was actually working on the virtual output tubes of the amp model.At a given depth it’s much more of a pronounced effect than the one in the amp block for sure. I’d wager amp bias trem depth at 100% is only as pronounced as the trem block in the 25-30% depth range
I've always loved the swampy nature of bias tremolo. Totally missed it on my AX8, and bought an external pedal for it. Then back to the III and it was back in the amp block (as the II), but now we've got 2 different options for bias tremolo sounds, plus now some options in placing it pre or post amp block, which is nice too.
Basically we've got everything the Flint pedal offered. Bias, harmonic and optical tremolo, and of course we've got its reverb choices covered and then some.