i can't imagine using rodinal for that film... ive always heard that rodinal only works well for slow (<100) films(posted 8152 days ago)i've been using edwal fg7 diluted 1:15 in a 9% Na2SO4 solution for about a year, and 5.5 minutes seems to work well for exposing at 1600 (i always overexpose the hell out of film, i meter and expose in the darkest shadow)
i just started today using tmax developer, and 5 mintues seems to work well for iso 1600