The ESP Original series are basically ESP Custom shop (well they don't usually use the words CS in Japan) made instruments but usually made in small batches (from what I've heard, about 5) at the same time. The quality of the woods and the craftsmanship is on the same level as on the order made...
I've been playing and collecting ESP's and they are the only guitars I'm really interested in nowadays. That's why I've gathered as much info about them as possible. Here's some:
ESP has 6 Custom Shops in Japan;
Technical House - serial number THxxxxxxx
Craft House - s/n CHxxxxxxx
Kiso CS -...