I also use the MAD super Aluminator.

I can tell you I have actually used it as a last resort in an are. I have used a box, a diaphram and even a shock call to get a response. Nothing.

Then I take out his Aluminum and within 5 minutes in the same area I was getting nothing I am suddenly getting Gobbles.

They do take a lot of Maintanence keep the sand paper with you. The one problem I have had is that there are times you need to rough the entire slate. When you do this take a minute to find the new sweet spot.

I have called more birds in with this call than anyother, most are lucky enough to only be shot with the camera as my season usually is only 1 week long. The camera extends the season.