If your crusing around a college campus, your gumballs sound like they should be fine, i thinking putting in the reds bearings should help significantly unless you were using some highly superior bearings already... In my opinion, it doesn't sound like it'd be worth it to spend the extra money on new wheels unless your wheels are really worn out or something
for cruising around your campus i would recomend you do change the gumballs first of each wheel weighs 8 ounces they are a great wheel but heavy wheel once they get moving their great i have a set of blast waves and i seem to have the same feeling with them just a lil quicker not noticable, i also rode my board with the new oust wheels that was the smoothest and fastest but for a set of $60 dollar wheels i aint going to wear those down around campus.
well my recomendation rode those orange wheels once loved them quick, light and gripy and the lime big zigs love em but i think when it comes down to pushing you might be better off with the orangatagana things whatever there called