A side note: I was told by more than one old boat curmudgeon that a horribly leaking wooden boat at launch can be helped along by swimming under the hull and releasing saw mill sawdust. Take a coffee can and fill with sawdust, swim under, and release over a section of the hull, rinse, repeat. Apparently the sawdust gets sucked into the cracks along with the inflowing water and fills in the spaces a bit, until the wood itself can expand. Since I didn't have much of a leak problem, I didn't do this, but it is in the back of my mind for future reference.
That's an interesting bit of lore. Yes, I assume that your boat was built a little "drier", which was good for you...the caulking probably helped a lot as well.