I replaced my Sachs blue spring shock with a 2003 RSV Ohlins and 2003 dogbones and triangles. I'm only using 3mm of the (I believe) 6mm ride height adjustment available to me and I can confirm it's definitely jacked up at the rear. I never tried it on standard settings, but the angle the bike tips over on the side stand tells me I've substantially increased the ride height.
I've even dropped the forks through the yokes by two notches and it's STILL further over than standard...
One thing I did notice was that with the Ohlins shock I have (with the hydraulic preload adjuster) the spring is automatically preloaded by 15mm+. Standard spring length is 150mm, mine measures 134.5mm with the preload adjuster backed off completely. If your shock doesn't have the HPA then you will have the full adjustment available, of course.
I weigh around 11 stone (154 lb) dripping wet and I found that I was getting kicked out of the saddle a couple of times during a 2-3 hour ride. Even with a passenger it still felt 'taut'. I guess the preload may have had something to do with this.
Having said that, it still felt a whole world better than when I had the Sachs fitted. I was running in a pair of Dunlop Roadsmarts and got the rear to the edge of the tyre within 50 miles. This is testament to both the tyres and the shock, I think. And in case you're wondering, it steers like a dream; almost by power of thought.