My pins are stock, no issues. Before I started flying, I used to wipe down my pins with silicone lubricant. For some reason I don't need to do that anymore. If you have an AeroVee you will discover why. I do the right cowl first. I hang the cowl by getting the outboard 1/4 turn fastener in its hole....
If you are building an aluminum tank you can make a filler neck like the A model, and the stainless box that goes around it. We generally read the fuel level on the ground and add a specific amount of gallons, rather than watching. Two up, we can't take full fuel. It also works if you want to go ful...
The Onex looks similar to the Sonex-B design. I had shown an Australian builder what we did on the A model for a catch can, and he came up with a similar concept for the B model. Watch from about 2:50 below. [youtu_be:1vh0ufdd]https://youtu.be/md3G0LHvvnA[/youtu_be:1vh0ufdd] Perhaps a catch can like...
Definitely easier and faster to polish flat sheets. When solidly supported on a flat table, more pressure can safely be applied and that speeds up the polishing with the first two and most difficult grades of polish. The warning about not using too much pressure is mostly about not causing ribs and...