Been riding a set of 149 (8.5") Polished Hollow Lights HI - they're great, light and turn like, um, Thunders? They're a MID truck (which is funny because they are the same height as my ACE LOs).
I recently wanted to move the kingpins from them to my ACE magnesium plates but they were much taller, putting it back into the Thunders' forged baseplate (splines aligned perfectly) was an exercise in frustration, broken hammers and bruised fingers.