Greggk,
The screws are adequate but you have to bend the brackets...they come flat. When you bend make sure you put a piece of rounded wood next to the bend in your vise and bend over the rounded portion or they will snap. Just take it slow and easy when you make the bend. I made a slightly different style (more scale) from flat sheet alum. I bought at the hobby shop which if you break any you can buy there rather than have Ryan send new pieces. I cut them on my bandsaw. As for the drilling I clamped them and used my drill press prior to bending with a bit roughly the size of the threads on the screw.


Bud