No, not exactly, because there is no access yet. But it seems to be at least 12" past the scupper and before the bend over the back wall. But am going to install a 6" deck plate or two on that back wall so I can see and feel better. I've been using pink antifreeze pouring it in the scuppers and then trying to see how it gets into the lower bunk.
Probably will go back to boat Thursday and do some more.
That sounds logical what you said about the crossed lines, however, I can't imagine ever healing so far that water could possibly enter a scupper. First off, the cockpit floor would have to be below the seawater level, it's way above even when healed. Another possibility is the routing across the boat MAY allow a more straight run for the hose without kinks. Mine are on the same side and I noticed the hoses go up and down trapping water in segments of hose. I will consider both paths when I run new hose...
While there is a thrill in over healing, it does not seem to result in faster than normal hull speeds.
My scupper lines criss-cross each other. I'm guessing it was done that way so water wouldn't enter the cockpit while heeled over. I could be wrong. Have you been able to determine EXACTLY where your hose is leaking. Most develop cracks from ice building up near the scupper. Since I hate cutting holes in my boat, I thought about just replacing the cracked section with a new piece.