Nobody has mentioned this, but it is quite relevant. "Some" films seem to be more prone to developing streaks and marks than "Other" films. Now I can't give you a list, but just from my personal experience..Forte 200 seems to always develop streak free in hangars in my deep tank with only minimal agitation, whereas Fomapan 200 requires almost constant agitation to develop streak free. I know this from experience. If you are using a "difficult" to manage tank like the FR, then not only the developer, but your film choices will affect your success.
While over the years I have tried most small, and large sheet film tanks, the knowledge I have gained tells me this: There is probably some combination of film and developer that will give you good results with the FR tank. I would consider developers that would give you a long processing time as being the most appropriate choices.