My front sight is only 1/16" inch tall. It is so short, it mainly serves to make sure I'm good on windage. I sight by lowering the barrel on target until the barrel just disappears below the curve of the tang ... all I can see is the top of the tang and the nub of a front sight. But that puts the ball right on the point of aim until the barrel gets hot enough to get a mirage effect going, making the sight very hard to see. One of these days I might try some sight black to see if I can cure that (it is a "bright" barrel, with no browning or bluing).
For shot, I just point it like a shotgun, using that nub of a sight just like a shotgun bead. Seven doves so far... it ain't easy, but it is doable.
Given my experience with this gun, I would say you shouldn't worry about making the sight shorter if that is what it takes to get you on target with your chosen sight picture. But, as you suggest, finding a way to get a consistent sight picture is the key.
Some things I've seen or heard about (but not tried first hand) are:
- is there a tang screw that you can see while sighting down the barrel? If so, get it turned so that the slot in the screw runs fore-and-aft and use it like a rear sight.
- file a very shallow notch in the tang right where it makes the curve down onto the wrist; use the notch like a rear sight.
- glue a BB onto the top of the barrel somewhere about where the rear sight would go and use it like a double-bead shotgun barrel.