For all the people who purchased a Schertler Stat B and regret they didn't buy the vintage set (which has 2 pickups instead of 1): you can add a second Stat B pickup very easily to your existing setup. The two pickups of the vintage set are connected parallel to the pre-amp, so you can simply order a second pickup (without pre-amp) and get a cinch/rca Y connector (which you use to connect the two pickups together) and then connect that one to the amp. I double checked this with Schertler, and yesterday my second pickup arrived, and I connected them as described and can confirm it works. If you don't mind to void warranty and are handy with a soldering iron, you can solder the two wires together into one cinch/rca plug. (that's my plan)
The mounting bracket of the pickup's plug is glued to the rca/cinch connector, but with a sharp knife you can cut the glue, and remove the bracket from the plug...
Enjoy, Daniel