I am pretty sure the pictures are gone thanks to the site upgrade, but there was a prior thread with great pictures of several methods. Here's mine: I will try to describe it without pictures...
I use a very long bolt that is thread matched to the insert. I also use 2 nuts that fit on that bolt. I thread both nuts onto the long bolt higher up it than the insert depth. I then put a very small amount of Vaseline on the lower threads of the bolt as a release agent. Next, I thread the insert on to the bolt until the bolt end is flush with the bottom of the insert. Now, I take the closest nut and run it down until it makes contact with the top of the insert. Next, I run the 2nd nut down until it makes contact with the first nut. Using two wrenches or small plyers, I tighten the 2nd nut against the first. This locks the depth of the bolt.
I prepare the ski hole with a light coat of epoxy. I prepare the end of the bolt with a touch of Vaseline as a release agent. Now, I can use the long bolt to screw the insert into the ski hole until it is flush with the top of the ski. I leave the whole assembly in tact while the epoxy cures fully.
Once cured, I release the 2nd (top) nut using plyers and back the long bolt out of the insert. It has always worked for me.