G'day mate, since we are from the same neck of the woods my opinions may be of some relevance.
I ride with a group of mates whose bikes range from cruisers through the likes of Tigers old & new, Beemers including an R12RS, Hornets , ST 1300, Dukes,Bonnies, pretty much everything but full on sports bikes, as we are all too old & broken arsed to fit on them.
I can keep up with all of them until the speeds get over 130kph, however I had to change my riding style, as a generalisation guys on faster bikes tend to point & squirt relying on horsepower to make progress, I now try to carry lots of corner speed, I don't go much over 120 but there is bugger all hard braking & I usually shortshift & try to carry momentum as much as possible. The tighter & windier the road the better. Takaka Hill , The Rimutukas, The Forgotten Hiway & I am in my element, not huge speeds but pretty quick & a clean license. As an aside, on a ride through the Forgotten Hiway the mate on the ST1300 decided to really turn it on & I tucked in behind. It took me a while to work that all the banging, scraping noises were his undercarraige dragging on the ground, that thing was surpisingly quick, for my part, I sraped the pegs a couple of times, any short straights & he would pull ahead , corners & I would reel him in. Heaps of fun , on more open roads he would be gone.
Suspension :- Racetech kitted front , Ohlins rear , YSS appears to be pretty good as well . Makes a huge difference, they are still a little loose when pushed, they will never be a Duke but mine is way better than stock
Tyres :- I like the Pirelli Scorpions & The Avon Distanzias, others like the Tourance or the Annakee, all are better than stock on tarseal wet or dry & at least it's equal off seal.
Power :- Only fixed by applying lashings of money.
Brakes:- Upgrade front disc pads for more bite
Unsealed roads :- Way more fun & far better than you might expect, The suspension work pays off big time.
Summary, no way would I go back to the Sprint, I enjoy the Scram, it requires a little more technique to get the most out of it compared to your average sport tourer, suits me down to the ground, & I would not think twice about having a crack at The Molesworth, Rainbow Road, Danseys Pass or the Black Forest road in fact I would go looking for them.
As an aside the Scram & I don't suit a lot of group rides, On the last Rat ride I attended I was comfortably quicker than the Bonnies & Cruisers, unable to match the quick guys which was fine but the mid pace riders often passed me at the end of the straights & the dribbled through the corners which was most frustrating, I'm not bagging Rat, there are some seriously good riders amongst them, just the way I ride I guess
Sorry if this is long winded & a touch location specific for most but Deano will know the places I am talking about.
Good luck