When I played on this track "
Nothing is Real" It was with a Ken Smith 6 string, with Rock Masters, with the B dropped to A. On the intro you can hear a bit what they sound like in a metal slap scenario...
For a stronger slap tone I used the heavier gauge Rock Masters... For a lighter, faster playing string I also have used the Slap Masters and they are currently on my 6 string fretted smith. I play a lot of Jazz and Pop stuff with them.
The lighter the string, the easier you can work around some of the slap / pop techniques if your not used to them.
I had Hi-Beams on a Fender Jazz that I would slap a lot on and they were really solid, gave a really fat solid tone.