Based on Ken's summary:

Prepared two cosmic paddles/PMTs below around stack 2
and 3 of sector 8. To put more paddles, we need much
better mechanical preparation. We will prepare more in
Heidelberg. We put also pretrigger system, HV for cosmic,
NIM crate below sector 8 and observed around 0.1 Hz cosmic
rate as a coincidence of two paddles with 1 m x 20 cm size