There's another place that makes endpin jacks that fit into the original endpin hole here. The advantage is that you don't mess with your instrument, but they're pretty spendy and require a smaller jack to use (included w/the endpin). Maybe worth the $ to install a pickup w/the smaller jack so that you could remove both down the road with little or no evidence they were ever there.
Great info, thanks. It also says that you can special order K&K pickups with the Vintage Jack, I'll check that out, because even though it is considerably more $ I like the idea of not having a hole drilled in the guitar.
Once again this forum is a wealth of knowledge, information, and good ole help,
Joan
