I have had correspondence with walli from PrimeGrid and I found out that he is actually not rebirther. Not what I was told by Dr Caldwall. Anyhow, I apologise to walli but my caution regarding SRBase and whomever is running it (I think its rebirther) but who knows. Ensure you check that project's forum for Private Messages every day you run SRBase tasks, otherwise you may have your prime number finds stolen. The recovery process is time-consuming.