My 8x10 negs never came out right with the unicolor drum. I think it was the slow addition of the developer. Hit and miss with 5x7. Plus the damn things leak. Even got a "new" gasket and they leaked. I never had a motor base for them just rolled them between 2 2x4s
I always pre-wet the film. People say you don't have to but it was the way I was taught.
As for other film I have used several, some of which are no longer around. I love Delta 100 and Efke. Delta because it is plain beautiful but it does not expand as far Efke. I like the look of efke as well and it expands very well. Plus, it is not as expensive as delta and comes in 5x7 too.