For the first9 years of turkey hunting all I had was the front and rear bead on my Wingmaster too. I had to aim a little high and the the left for years because I didn't know about adjustable sights. I only wish back then I had a forum like this where I could have learned from others that thereare otherchoices out there without having to buy a scope.
Adjustable sightgo for what$50.00 to 75.00? That'smoney I'd have dropped in heartbeat to keep having to remember to adjust my aim point

Other than needing one tomove your guns point of impact, there's another great advantage to them I didn't mention.
Now I'm not expert on this norcan I throw out statistics but I've read the number one reason someone misses a turkey is because their not down on the gun or sights. I'd have to say "Turkey Fever" is a close second, LOL. Having a front and rear sight could greatly improveyour chances of having to get down sight and staying there for the shoot.
My SBE II has a front and rear bead. If when I go to pattern it this spring I can get away without using a Williams sight on my gun, I'll be all for it! I would just one less thing I'd have to worry about breaking while out hunting. Best of luck and always hunt safe