I usually insert a toothpick or similar object into the tubing to stretch the opening a bit. Let it sit for a few minutes so it'll hold the larger opening. Then with needle nose tweezers I grab the tubing close to the opening and maneuver into place on the bike. A touch of spit/lube on the opening helps the tubing slide onto the spark plug. Danger
I utilize the printing plates not as stock material to be used on models, but as the floor and side covers inside my paint booth. I put paper over the printing plate to catch paint and overspray and toss the paper every couple of weeks. The printing plate just needs a quick wipe down to clean. The printing plates are pretty hardy and can takes spills from any of the liquids I use. Danger
Use beer caps as small mixing bowls. Give them a quick wash and they are perfect. Most of use usually can find a few lying around. Also add a little thinner to the paints when mixing (and maybe a drop of retarder). The thinner will help the colors integrate easier. Danger
This paint effect can also happen when the colors are not completely mixed. The metallic particles will slowly settle in the airbrush cup/bottle. You have to keep mixing the paint to keep the particles fully suspended. Best to use a high speed mixer like the battery operated Badger Paint Mixer. Give it a good mix right before every coat. I've had this happen on one of my builds. Danger
I say build it! I too had a fairly rare Tom Daniels kit that I could have let sit on the shelf. Here's a pic of Tom Daniels Devil Chopper. Not sure how rare it is, but I have never seen any others out there.
I've shot Alclad over a Future with great results. I laid down a flat black base and then shot the Future to give it a shine. The Alclad holomatic spectral chrome was shot over the Future within 12 hours. I then used Alclad's clear gloss as the final coat. It wasn't as shiny after the gloss coat but that wasn't my intention, I wanted the spectral aspect over the whole car. The clear provides a great barrier for handling and durability. Danger
I'll be there as usual. I hope this new venue is better than where it's been the past several years. I liked the Legion but the space was too small and dark. I'll be bringing what I built this past year. Danger