I feel for newbies in the internet age. So much info is electronic these days. So much marketing/hot air. So little help.
See my original comments about losing focus on what's important, because of marketing/excuses and blaming equipment in post # 3
Go out in the field. Pay attention.
The best hunters I know never talk about decoys or calls (Unless they sell decoys, or are Pro Staff for decoy or call companies).
Learn what your target is interested in (Hint....food is more important than flocked decoys. So look for bugs/larvae/eggs, slugs, acorns, seeds, plants, clams, and fish. What kind of plants were growing there last summer.). A quiet place late in the season where they are unmolested. Even if the spot lacks food, if it has traffic, you can make a great hunt (or several great hunts). Just because you have plants doesn't mean you have good food sources. Canary grass is everywhere, and has little calories for birds. I saw a new one last week on the island. Red stuff. Invasive species if my google skills are correct.....not good.
The best hunters run their equipment well. They sound good on their personal calls. That's not to say that only 1 call works. Just that person has mastered their equipment. They focus on the birds, and not the gadgets.....which is why they kill a lotta ducks. A true professional never blames the tools for a poor job.
If you REALLY want to be a great duck caller practice a lot. Like every day in the front of your pickup when you drive to work/home. All year long. Once you learn a reasonable level of proficiency, you have no excuses. The trick to calling ducks isn't what you are running, but how the birds react, and your ability to read their reaction. That's duck calling.
Learn about ducks. Wigeon have different diets than mallards. If you see a big group of wigeon, start looking at available food sources. If you study their beak, you will see not all ducks are created the same. Once you learn what kinda foods attract what kind of ducks, you are beginning to be a student of the target. After a while, you will start to see a particular plant, and you will understand it will likely draw in particular ducks better.
Even if you are in a spot with little/no food, you can have great success if there's enough traffic working. Roost spots are a big deal to ducks. They may only eat a short period every day (Maybe a couple hours). But they gotta roost somewhere for the other 22 hours.