Slappy Inverted Hollows, 8.25". So far, so good.
Before that it was a Frankenstein'd set of Indy Hollow Mids, size 144. I bought a set of the Indy Mid Baseplates and put my Stage XI Indy Hollow 144 hangers on them, with those Krux "Pink Label" downlow kingpins, and those were a damn fine pair of trucks. I just wanted to try the Slappy Trucks, that's all.
There's also a pair of 8.5" Krux K4 standards on my cruiser, but I may switch those out with another pair of Slappy's if I get the itch.