Re: Got my new RG Prestige... woohoo!
I love the warm sound of the HT-Drive (lots of harmonic overtones etc.) although if anything it does highlight that the neck pickup on the 1570 is a bit muddy. Never tried a TS-9 so I'm not sure as to how much difference in tonal quality there would be.
Since I am also running a Boss GT-8 I've been playing about with connecting the HT-Drive 1st in the chain, in the effects loop in/out and changing the loop placement on the GT-8. It's quite surprising what a difference it can make but overall I am more than happy... having said that I feel a pickup change coming along in the near future!