I had started to pour the Ilfosol 3 in ten-seconds before the full minute, agitated as per the leaflet and started to pur the dev out at the 6min 20secs mark. It may well be that by being a bit slow of the mark in getting the Ilfostop into the tank, some over-development has taken place.
That's only about 2.5%. Not enough to worry about or to see any difference.
"People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.