match drilled all the R/H elevator structure to the skin, deburred & primed the skeleton as well as the feying surfaces on the inside of the skin with zinc phosphate primer.

On the old elevators I got with my wings, I discovered a big air pocket inside one of the lead counterweights, so prior to match drilling for these weights, I weighed them both on my postal scale to make sure they were more or less solid. They both weighed 2lb 7.1oz, so that's good.

One note of caution; They have you temporarily install the counterweights then drill through them for the AN bolts that hold them in place via a couple of pilot holes that are in the tip of the counterbalance horn. The holes on the back side need to pick up a couple of different flanges, and I can see how if you didn't drill straight through you could either run into an edge distance problem or alternately, get to close to the web so you couldn't get a lock nut on the back side. Based on that, I used a drill guide block and it came out fine.