I see you have made your choice, but i just wanted to'third' the 1-pin slider. No more hunting for the right pins or forcing your sight out of natural alignment because the pin you need isnt in the middle.

Although pricey, I tired out the vital bow gear startrack since it was a slider but you didnt need to use the yardage tapes since it has fiber optic sites, and realy bright ones at that. It has a perfectly circular pin guard so even without any pins it centers perfectly in the large vbg peepsight. it is a pain having to adjust the yardage before bringing the bow up but so far I havent had a problem with it with 3 deer so far. Nice bright flourescent ring around it, glow in the dark lining under the fiber optics, fully adjustable 6 pins to cover a wide range, only a single pin so to not clutter your view or make you have to hunt for the right one.