I am using the E-6 kit from Freestyle for developing 120 films in my Paterson tank. It calls for 10 minutes of Blix at 105 F. The general directions for hand tank processing suggests agitation for first 15 secs and then at every 30 secs interval after that. I have had good results in general maintaining bath temperature and consistency of agitation for all three soups: 1st Dev, Color dev and Blix. I understand that the agitation is important for the first two developers. But since the Blix time is so long I get tired of standing there for 10 mins + and hand agitating every 30 secs. So how important is the frequency of agitation during Blix time? Can I reduce to once every minute? Once every 2 mins?