Who's fsb?? Whats an FSB? Now why would I let my hens sit on maybe 3-4 eggs and stop laying for the rest of the season? Very unproductive and costly feed wise to allow a hen to hatch out a few peachicks in a years time when if she is not allowed to sit she keeps laying.My 2 Opal B/S hens laid a total of 36 eggs in the month of May,,if allowed to set on them in early May that would have cut egg count down to nothing for the rest of that month.My incubator is much more reliable than a 2 year old unproven broody peahen. If you take a value per egg laid that money can buy a very nice incubator in a very short time if the hens are not allowed to set,and keep laying while eggs are put in the bator. This is still a "Hobby" in the sense that all my expenses so far for building and buying some adults did not come from a savings account or a bank loan.Like everyone else I went thru the 2 year wait and see until birds was old enough to start breeding so now it's time to get back some of that 2 yr feed expense. 3-6 peachicks hatched by 1 peahen all season,,or 20 or more peachicks hatched in my bator by the same hen all season long,,,guess it all matters if you don't care about hatching or getting anything in return for your expenditures,,I'm at the point now it's time something starts coming back instead of always going out for the past 2 years.