Agitation without inversion

If you think a stick works, make an eventoned frame on one roll. If there are differences, that is where it will show with darker edges compared to the center.

If it does not pass this test, agitate over a tray and pour the spillage back in.

In my opinion, nothing is a good a vigorous inversion for roll film.

Patter direction say to use the stick ONLY for the first agitation immediately after pouring in developer. After that , invert