I have several rolls of Efke 100 & 50. I went looking for development times in D-76 1:1 at their rated ISOs. JandC lists a time of 12 minutes for 50 while Frugal Photographer and Digital Truth both list 8 minutes. For 100 JandC says 10, FP says 9 and DT says 9-12. Quite a spread. I'm just looking for a starting point here. Can somebody give me experience-based numbers for these films?