The SKS is a dandy little rifle, handicapped only by those crude 19th-Century sights.
In my opinion, anyway, it would be improved vastly by the installation of a decent aperture sight. This is a sight with a HOLE in it to look through.
If you wanted to be all European and technical, you might call it a DIOPTER sight, although, to me, that means that you have to stuff your eyeball through it (painful) in order to get it to work.
By looking through the tunnel made by your scope mount, you have extemporised an Aperture sight.
Obviously, it works for you.
Trick to Aperture sights has already been mentioned: forget that the damn thing is even there.... and just look through it at the FRONT sight.
Now squeeze the trigger gently until it goes.
BEST book ever done on shooting with Aperture sights is SHOOT TO LIVE!, the Canadian rifle-training manual written in 1944. You can download a FREE copy over at milsurps dot com.
Just a warning, though: by doing this, you are letting yourself in for many hours of fun, informative reading and great cartoons.
Go get it!