Got it. In your patch, the use of the Princeton model, cranking the Sag all the way
use of the 'Vintage" Amp Voicing was excellent. You didn't edit alot of the stock settings
in the Advanced paged which would have helped your fat, smooth, saggy vibe.
I redid the SPKR page impedance curve, the EQ page, and some of the Advanced
page parameters. Hopefully, this pushes it a little more in your intended direction,
and shows you what you can get, sonically, out of those pages.