I have the firefly's on my .243. They're damn nice, though the stock spring is a bit soft, I think i will invest in a stiffer one. I dirt jump and race 4x on the 90mm setting with the rebound on slowest so they don't top out too chronically. They're super stiff and the spv is great for jumping and just riding around, u can customise the pedalling platform however u want it so u really can't go wrong. I haven't ridden flicks, so can't comment on the difference, but the firefly's are great. (and camo looks good)