In counter to Gordon: There was a problem with bad packaging in the 1 liter size, and some of those bad packages might still be sitting on store shelves. They can be spotted without opening the package. A refund shouldn't be a problem. I use the 5 liter packs and have never had a problem. If at least 100ml of stock is used per unit roll (36exp 35mm, 120, 8x10 sheet), regardless of dilution, there should be no need for additional time compensation. Just remember the published development times are a suggested starting point.(posted 9087 days ago)