I like this idea, I'll give it a try, the toilet was in use before

Good point, I'll look at that

I do have a shutoff valve, no issues with leaking there

I actually switched to this after the braided hose leaked, partly because it was cheaper, and partly because I could have a line that was the exact right length

So the end that connects to the toilet is flared, but it's hard PEX, so it doesn't make a real good seal

Interesting, I'll have to look more into this