having concave is more comfortable than using a flat deck. its not that you feel it that much though, it gives you more control hands down.
the concave on skateboards isnt to be comfortable btw, its so you can flip the deck easier.
did you ever stop to think that maybe the bleach could fuck up the urethane?
why would you clean wheels anyway lol. they just get dirty again in a week
they are proto if it says ada racing. they just started putting their name on it after they started up proto and stopped making SR parts.
still dont trade with cody because he has ripped people off and was proud of it.