Keeps the 35mm canister in place without trouble. Seems to work, haven't tried in camera yet though but it does roll onto the Yankee reel after some work.
I've seen a few MGs and they look pretty sleek. I'll keep an eye out for one. It's good to know that width isn't so critical. I might be off by a hair or so.
You used shaving razors or regular blades? Shaving razors seemed too flexible and bendy, I went with snap off's instead. The camera I bought off of Ebay showed a cartridge in the photo, but you never know, sometimes people 'forget' to send things shown in the photo. I wonder if anyone 3D prints the carts, and 110 carts.
I'm on the fence, I love taking photos but I do like messing around with the cameras too. It's all fresh to me, having grown up in the 90's I didn't have access to all this stuff. It was relatively expensive, now it's peanuts and there are loads of resources online walking you through the cameras and film formats. No more educated guesses.
I lucked out, less than 60k on mine when I bought it a year ago. Needed a new starter and battery, otherwise I'll drive it till it rusts.