Standard Deviation and Downswings

I am a consistent winner at SNGs and have been playing for over a year. Recently I decided to switch to 1/2 10 max tables to bonus (BW).

My question is, what is the standard deviation for an average tight/agressive (2bb/hr) player during a 1000 hand session?

How many BB/100 can a VERY good 1/2 player attain concistently?

If this same player experienced a downswing, how bad can it be? How bad is it usually?

I know the anwsers to most of the questions are "it depends", as is the case for most poker questions, however please try to anwser this VERY general questions, and I will not take the anwsers 100% to the book.

thanks guys!