That’s ok. If it fails it’s just an air leak. If a fuel line ruptures it’s not a fun thing.
When I bought my race car it had copper tubing for fuel line. I changed the fuel tank (for the life of me I couldn’t tell you why I changed it...IIRC I didn’t like that it was round and if it wasn’t full the fuel outlets were uncovered at the hit...that’s going off my memory from 1984 so take that for what it’s worth) and I needed to move the fuel lines over about an inch because I relocated the fuel pumps too. I barely move the tube and it split. So I cut it off and it split when I cut it.
That’s when I knew it was not good. In fact, the entire system was rotten and would split if you moved it. Had I continued to use it I have no doubt it would have sprung a leak.