I was looking for some feedback on using a base malt only and mashing at say 158f while using cal ale yeast. All the calculators say it should finish at 1.020-22. In my experience mashing at 156f, the lowest i can get the fg is 1.018. All of this is because i look at a recipe from a commercial brewery that is 90% base and 10% caramel and mashes at 158f, with cal ale yeast and getting to 1.016 fg. which i can't get to. Any thoughts?