I have a Squier CV 60 thinline which has some wonderful tone but I’m not in love with the thin neck. I have an old S-type guitar that is actually the first electric I ever bought some 25 years ago. The neck is wider and has a nice aged patina to it. I checked the scale and it’s identical and it fits in the pocket quite firmly. The neck plate is identical and all the holes are same spacing however the neck and body holes don’t match up. I believe the reason for this is because of the difference in shape on the bottom of the neck. The S-type neck has a curved bottom and the Tele neck pocket is flat. My idea is that instead of altering the bottom of the neck or the bottom of the neck pocket, I would like to fill the old bolt holes and re-drill them. What is the strongest most effective method for filling the holes? I’m thinking probably to glue in dowels but also thought of using epoxy mixed with some saw dust. Any experience with this and opinions/examples of which is better or is it 6 in 1, half a dozen the other? Thanks.