RE: switching from mech to fingers?...
sho-me, you just have to orient the peep in the string so that it rotates back square to the eye every time you draw the bow. A portable press like the Bowmaster sure makes life a lot easier when it comes to peep adjustments.
I used the Fletcher TruPeep for many years on my tournament bows and they're darn good peeps. But, in the last few years I used sights, I came to like the Shurz-a-Peep 2X2. It's made by the same outfit that makes the 3-way peep, but this one splits the string into 4 strands, with 2 strands on each side. It seemed easier to get aligned than the Fletcher.
That 3-way Shurz-a-Peep always bugged the devil out of me. Always seemed to have a strand in front of my eye, no matter what I did. With my eyesight, I was having a hard time seeing the pins anyway and that strand kept me from seeing them at all. Maybe younger eyes don't have that much problem with it.