It's been a long time, a really long time, a long and lonely, lonely time....
but...
I used that combo for a couple of rolls and decided I didn't like it very much. I found that in that speed film range, either Efke 100 *(at E.I.50), FP4, or even better, APX100, with WD2D+ were much better in speed control and tonal separation. I tried the Acros with Rodinal 1+50 with no better results so dropped that film.
I have notes on it somewhere. Times probably came from The Unblinking Eye also.
tim in san jose