Good thread! I'm learning a lot.
Like some contributors I didn't enjoy the Dynacabs at first. They seemed too "brash" to me but having become accustomed to them I now find the legacy cabs too "dead".
The biggest jumps in dialling them for me in came with using Leon Todd's Dynacab settings from his block library (thanks
@2112) as my baseline.
I also have clear and consistent (across blocks) high/low EQ cuts (high at around 6K, bass cut to taste; 12-18db cut), the cab block smoothing parameter is set at about 6, I mis-align the mics, use only the ribbon and Dynamic 2 types (occasional condenser), and I also play around with the speaker impedance curves in the amp block, although I often end up with the default recommendation.
I use a limited number of cabs - usually the Friedmans, 1960TV, Recto Straight, and I like the EV cabs on cleans especially; usually only two cab/mic combos in total). My favourite amps are the Friedmans, JTM45, Shiva CLN, Stealths, CAE3+, Cornford, Mesa JP, Recto Red, and the MkIV. To a lesser extent I also use Double Verb, AC20, a couple of the FAS models, and the Peavey 5150 models.
Ribbon: position 1-3, distance 1-4;
Dyna2: position 2-3, distance 0-1,
12-20 misalignment on one mic/cab
IR length 512 samples
No panning