It's an interesting subject Kronos. I am very lucky to have Bottle 3/4 skies so many of the large DSOs like the Beehive, Andromeda etc are clearly naked eye visible. My 10x50 binoculars here for example, can resolve mag 8 stars on a good night and mag 9 as very small grey pixels, but in outer London visiting family where the bottle is 8 I really struggle with everything through the bins so more aperture is essential. Also reading other members observing reports from light polluted areas I have sometimes been surprised how little can be seen, so I would imagine an 8inch newt under bottle 3/4 to be amazing. I think the 130 heritage will be very pleasing under dark skies - so many people sing it's praises and I wouldn't be surprised if it would rival your dob.
Mark