Thanks for all the responses! My blemishes were appearing in areas where I shaved ATG. This was only on my face as I am not quite skilled enough (yet) to get into the curves of the neck with much detail. Perhaps I will stop after the across the grain (STG for sideways?) and see what happens. I think my prep was pretty good but I will try to do better post shave cleaning per the advice on here. Also, the blemishes didn't appear for a day of two so I suppose I should take greater care to clear the pores on days I don't shave. Now they are all clear without any ingrown hairs so hopefully I don't have to fight that in the future.