The nano saber is somewhat useless right now. It's only use is for PVP. I think it should (once 1.8 is out, ofc) always be a 1hit kill ON CRITICAL. So normally, it would 2 hit kill, but when you dropattack, it would instakill. That way, it actually has some practical advantage over the chainsaw in SSP.
Sounds like a funny idea, but wouldn't make the Saber entirely overkill. I will consider it.