Quicksilver is just another outlet for a few of Mercs common props that don't have all the trinkets or technology of the higher performance Merc line.
Quicksilver is the line made available to most independant shops that want a "merc" type prop.
Most are general replacement props...for example...you won't see a quicksilver Enertia, or Tempest, or trophy...
The Laser is one example that is available in either line...
Is it a better prop? Depends what combo we're running it on. In test data a stiletto advantage has simular numbers..throw a Turbo1 on and raise it a bit and the Laser don't show much...it all depends on what the rig is..alot of these props are cross-overs in application...properly set up, They all run better..prop to prop..I won't say a Laser is better.