No need for ABO to get rid of the redstone engines, BC now has
Autarchic Gates.
The autharchic gates arent as good as flow86's valve pipes in my not all that terribly humble opinion. (read: I don't really like them all that much personally. anyone else is free to love them bigtime if they want).
first off they are expensive in terms of setup, secondly, flow's pipes allow you to attach a lever to the pipe for manual operation. something that is very nice when just setting things up so that you can prime all the tanks/engines before firing up the system as a whole.
I never plan out in advance, so a lot of in construction phase testing tends to take place to ensure that the stuff I'm building is actually going to work the way i am setting it up.
Besides. balance pipes are goodly for balancing several tank towers for boosting storage space.
