I had only messed with a couple of these until recently. In the past, I pretty much pushed them all the way in. I noticed that the Kuhnhausen book says to go until flush with the contour of the stock or slightly farther, so on this last one I didn't go all the way in with it. On that spring that was the wrong angle - you can bend those if you are careful, and make them usable. I'm attaching a picture to show how far off the angle was on my "new" one when I got it several months ago. Actually, the springs in this picture are the exact same ones that are compared in the pictures shown on page 1 of this thread. - Bob
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