ok this is getting frustrating [:@]i'd planned on buying a pack of mechanical heads and a pack of fixed to compare as for fixed i'm going with the slick tricks but i'm stuck on the mechanicals. i had planned on going with grim reaperbecause of the goodreviews theygot on this sitebut most everybody i know around my neck of the woods (including my local pro shop) recommends rocket sidewinders. the thing i don't like about them is the fact that they use rubber bands to hold down the blades thats why i liked the reapers no o rings or rubber bands but a lot of ppl swear by the rockets. whats the deal on these? are they any good or are most people just bragging on them because thats what they like?