Perhaps not helpful but this has not been my experience at all. I use a solid-state power amp and cabs, and often the AFX is to me warmer and more compressed than my real amps. I have to actively remind myself to keep the gain and master volume on the low side on the AFX to avoid that. And I'm often surprised by how clanky and fizzy the real amps can be.
I heard those HB cabs with V30's are kind of flatter response / (ie: heavy mids) as it is, relative to other Celestion's. Those amps are also mid-heavy, making matters worse.
Traditionally I'd recommend turning cab sims off, but in this case seems best to leave them on.
Won't be 'flat' or 'authentic' or whatever, but if it sounds good who cares....
keep in mind that the tone may change once those V30's break in. I heard that happens with those HB V30's.