final post (for now) about pig wheels, if anyone's interested
i've worn through the tread on them, and they powerslide worse now, but i got used to that. it's challenging to do a long powerslide on them on gritty asphalt, they worked better in that aspect before the tread wore down. they also drag on unwaxed ledges more than f4s but not that much. i haven't got any flatspots on them so far, and i've done a ton of different slides. they feel slower in the streets than f4s, i put a new set of skf bearings in them to compensate but in the skatepark they work great. i wouldn't recommend them if you skate street a lot (unless your street spots are smooth concrete/marble/granite), but they're not bad wheels, they're just worse than f4s but to be fair everything is.
i might post something more about them when i switch back to f4s, so november/december