I tried the first method, deleting a form via tools, although it said successful, in face it did not delete the form.
At some earlier point I must have said no to allowing IRS to compute the penalty, and there was no chance to change that answer.
Eventually I went through about 10+ supplemental questions relating I think to timing of income, upon completion of all of those, I tried again to delete the form, this second go around seemed to work.
