%#*%## I'll Be....you are correct. I have the right drill jig....but, use the wrong set of holes.
See what happens when you get in a hurry to get to the flying field with a extra prop!
I think I will use the dowel and white glue method at this time.
But, I want to say....I have been sent the wrong drill jig before.
About three months ago I ordered a drill jig for a DA50 4 bolt. And it wasn't even close.
Sent it back and Troybilt. They gave me credit which was no problem with me.
When I ordered this DZD 40 drill jig, I ALSO ordered another DA 50 drill jig at the same time...and it is correct.
So go figure??
Check before drilling.

Thanks all
Dummy Jim