My cocker ramps to 15bps and quite simply my Z board egg which should do 19bps "doesn't".
Despite what any advertising says, eggs just won't keep up if your running 15 or over, and so as most guns are running those figures people need to move over to a halo or something similar to keep the gun fed with paint.
Personally i prefer the egg and reliability has never been a problem, they are great for that, but people need faster and as the advertised figures are bollox, there's only one one direction to go.
Ps, if anyone can let me know the secret to gearing up the egg motors for better speed i'd appreciate it