[James A Pratt III]

I am looking for information on the YER-2 GPW bomber and it's operations. I have found some information on it's 1941 ops including the Berlin raids but not much else. I know this is somewhat of a rare bird but can anyone help me find out any information on units, operations,and losses. I know it was mainly used for night bombing. and i believe the following units used it:
1941: 420 BAP
1944-45 328 & 329 BAPs