Eight minutes in AM74 diluted 1:15 seems to be for TMY a bit short. Next
time I go for 8:30 as some shots seems to be undeveloped. One inversion per
30 sec seem to be on other hand quite enought. I did first 30 sec constant
inversion and each 30sec one inversion for 3 sec until the end of time.
More info and possibly some example tomorrow after scan.