like everyone else, its only truely worked once for me also....had toms come from two different areas, had 3 hens and the bmobile out..the first tom got there won a trip to the dinner table.
different hunt, had another tom come in very hestitant...finally brought him in on wingbone, two of us going at it.
all in all, it's hard to be a single hen decoy, maybe 2 at most.
I think the strutters are a hype honestly. When they work they work very well. I think early season just as the flocks are getting close to bustin from winter to spring groups, lots of competition for status and very very few hens ready. This is when they are really deadly. Later on when toms are henned up and the pecking order is laid...not so much.
Something you'll also notice, the real lifers...be it Zink, David Smiths, or the 'best turkey decoy' are all non strutters. The latter toting a more calm profile than worked up (its all about the snood lol).
Heavy worked wooded areas...I've found no decoy is better...more open areas a single hen does very well.