So I had to cut one copper gas line to get the floor out. it was really in a hard-to-reach place so cutting it was the only option. I also have a larger line I need to replace. I took the pieces to Home Depot to get some replacement copper tubing and I noticed that the "L" tubing has super thin walls compared to the stuff I pulled out. Like paper-thin vs 1/16 or 1/32" thick. Something like 1/3 as thick as what was there. I need to use the thicker stuff, don't I?