RE: which sight?
Take a look at the new G5 Meta.I just picked one up after my recent problems with the Sure Loc Lethal weapon. The sight is easy to adjust and they have a light the illuminates the fiber optics from within a light chamber so the light does not shine outside the sight. It does show a little from behind but a piece of camo tape covered that problem.
BTW my complaint with the Sure loc involves the fiber optics set up. As far as a rock solid rest for target or 3D I won't have any reservations about using it then.
DetLieut