I have a nice rolling block type Flobert that I'm having a problem seeing the front sight through the rear sight. I'm old and have health problems so I can only shoot in my backyard 10 meter range. I was wondering if adding a tang sight would be in bad taste. I shoot some Stevens Favorites that have tang sights with no problem but the rear sight on the Flobert is at a point I just can't seem to see. I know this rifle is not held in high regard but I would like to have a fair chance at shooting it well. How do you all feal about my adding the tang sight?