I believe I may be the one that started all this about Hicks slides so let me add my .02 cents too.
I've tried the Sims slide on my own personal bows and IMO it pulled the cables over too much.
The White (Target Model) Hicks slide is the one I recommend as it gives plenty of fletching clearance (even with 4" vanes) yet doesn't add too much extra torque to the harness.
IMO the Black (Hunter Model) Hicks slide also pulls the harness over too much, similar to or perhaps a little more than the Sims slide.
I'm sure the Sims and Hicks black slides will work fine but I believe they both pull the cables over too much.