What is your budget for a marker?
As far as power........ all paintball markers shoot at the same velocity, around 250-300fps, so no other marker, no matter how much more expensive, is shooting paintballs any faster or harder than the piranha can do. Now as far as rate of fire, that's a different story, but that shouldn't be relied on to win. The Piranha can make a great starting gun, but let us know what your budget is, we may be able to recommend a better marker for the same price.
Myspace = myspace.com/josh1903
I'm getting the NDS tech site going again. ndspb.proboards.com PM me if you would like to help make tech tutorials to help out the paintball community.