I personally like the Borg better. I've only shot a Pimp once though. The Borg is lighter, smaller, better looking(imo), both are real fast. I'm not sure about maintenence on the Pimp. Shoot both and pick.
before my borg had an eclipse impulse (totally tricked impy milled all eclipse stuff). OK gun but nothing special if I would have was'ed it maybe but then i got my borg. OMFG what a marker. fast, effecient and accurate. Great gun!!!