Started working the on the horizontal stabilizer with drilling the countersink holes on the flanges of the spars (HS-1202 & HS-1203). I got the first couple of holes to work well but the tip started walking around on the next few creating an oversized hole. The rivet loos like it fits fine and I talked with Vans and was told it should be ok, but after I messed up on countersinking the wrong hole, I decided to just order another set of parts and start over...plus I figured a better way to make these countersinks see the next log.