You've pretty much described the key sonic characteristics of the Scout vs the various Rega turntables.
You can get a bit more extension,authority, staging precision and resolution by carefully addressing the Rega's support and you can get somewhat better pacing and rhythmic drive from the Scout with the optional SDS but neither deck will be fundamentally altered.You could possibly close the gap between them but you'll never make the VPI party down and boogie.
If you thought the P3 was more to your tastes, then the P25 would probably suit your needs much better than the VPI.
You can get a bit more extension,authority, staging precision and resolution by carefully addressing the Rega's support and you can get somewhat better pacing and rhythmic drive from the Scout with the optional SDS but neither deck will be fundamentally altered.You could possibly close the gap between them but you'll never make the VPI party down and boogie.
If you thought the P3 was more to your tastes, then the P25 would probably suit your needs much better than the VPI.