Thanks, Phil. I am working hard at getting better, but sewing is not a natural thing for me. I struggle, so I must enjoy the challenge or pain, I haven't decided which it is.
Stuinniker is a name I came up with in honor of my father whose name was Stuart. He was a prisoner of war during world war two and survived the Battan Death March and numerous near death experiences from disease, malnutrition and abuse. He went by Stu and loved sailing. He had severe PTSD and drank constantly. I never got to know him. I have PTSD, so I feel a small connection to him.
The 'inniker' comes from Spinniker. The Stuinniker acts as a Spinniker when unrolled and the top of the bag is strapped to the handle bars. I tried it out and it works. It is kind of fun to be pedaling along and think, "I am having a tailwind, time to hoist the sail". I pull over and hoist it. I haven't tried it in really strong winds as it can't be reefed down...

. When up, it also helps block my knees from the cold and acts as a cold weather/snow fairing. Each prototype has become smaller and this is as small as I will take it. It still needs to act like a sail, to keep the name, and it needs to be big enough to hold my bikepacking load.
Right now I am disgruntled. The old axiom, "Pick two: Light, strong or cheap" applies to bags too. The X-pac is not holding up to repeated rolling and unrolling. The plastic lamination seems to be delaminating and wearing through where the roll down stiffener hits the plastic. The whole top third of the bag, which is the major part of the roll down, is looking sad. I haven't even got to use it camping yet. I thought I was done...This could be failure number ninety three?.....facepalm. I either remake the whole bag with a fabric I haven't discovered yet that is light, waterproof and durable, or make a siliconized ripstop liner bag. So guess what? Tomorrow, I make a siliconized ripstop liner bag and seal it with bathroom caulk. I am tired of Stuinniker. Sorry Dad. RIP. (My frame bags should be fine, as they are static).
After the liner bag, I plan on making a rear rack top bag. Since the Stuinniker is a combo of a Randonneur bag, fitted basket bag, Shop Sack, bikepacking bag and stuff sack, with the total being greater than the sum, it only follows the rear should follow the same design idea. How do I combine the best features of a rack trunk, bikepacking seat bag, stuff sack and Rivendell rack top type bag and make something that is truly perfected for my needs? I haven't even begun to think about it, but I am excited about the upcoming creative process. But for now....
I am tired. I need to take a day off first. Or maybe a week.
Clayton