Thank you blinddrew, I appreciate you taking the time for that! And you are correct, the colors on the resistors is still easily visible.

That's really good advice Simon, thank you. Using a drill chuck hadn't occurred to me, but as you mentioned, I'm pretty sure my chuck isn't big enough for the larger dowel, and unfortunately I don't have a lathe available. I will proceed with enlarging the tuner holes first and then filling from there.

I'm lucky enough to get to work both of my jobs over the next few days, so it'll be this weekend before any updates can be made. I'll update more then, thanks again!