If you want to use the stock drain these dimple die solutions are really necessary unless you’re okay leaving a fair amount of standing water in the pan. You might want to think about using a bar sink drain. Much thinner and will work pretty well without a dimple…much faster draining and you can use some filter media so you don’t clog up the plumbing. The shallower depth will also cause much less stretching of the hole. You can see what we did here: Fix for XR Drains - CrossFire ® XR / General Discussion - Langmuir Systems Forum