Surely the best stylus profile is the stylus profile you like best. Hard to see any reason to make it more complicated than that.
Sure, tracking *might* be a slight factor, but like mijostyn says above it's hard to find a modern cartridge which doesn't track quite well or better. I suppose if you play the Telarc 1812 every other day it could conceivably be a significant issue, but I'd happily put a good few quid on 95%+ of all tracking problems being down to bad set-up or a mismatched tonearm/cartridge combination.
Sure, tracking *might* be a slight factor, but like mijostyn says above it's hard to find a modern cartridge which doesn't track quite well or better. I suppose if you play the Telarc 1812 every other day it could conceivably be a significant issue, but I'd happily put a good few quid on 95%+ of all tracking problems being down to bad set-up or a mismatched tonearm/cartridge combination.