I might look into getting a dark kit then, thanks for your helpI've got a ego11 buddy and i fitted the dart kit it does make a diffrence to sound it makes it a bit quieter as for getting more shots out of it i haven't noticed much of a increase to be honest. It does make it a smoother shooting marker. hope this help.
Ahh right okay mate thanks for the adviceI would play for a while with the Bolt it comes with, you may be happy with how it shoots and feels without needing the dart bolt kit. My advise would be to get the Ego serviced and set up by someone who is qualified or really knows what they are doing, before buying an upgrade. it may save you money and if the gun is not set up correctly in the first place its still not going to be right with the bolt kit.