Don't know how to ask/don't know what I want.

Seems like every time I use a floor jack or my engine hoist the LIFT part goes well, but the LOWER part is really "tickelish". I would like to be able to lower the load smoothly and controllably by controlling the valve instead of just barely cracking the valve and jerking the load, often lowering it too much. I think maybe the air/hydraulic pumps I see around various tool shopping sites might do that, but I would rather have an electric pump if there was one that would give me that controllability. Or, is this just another of my fever dreams or a product of head up assitis?

BC