I thought it would be an interesting topic and it is not intended to sledge any particular kite brand.
Most kites are pretty good these days and each year new refinements make a good/great kite even better but . . . . .
My current kites are Slingshot RPM's. I rate them pretty highly but I have one main gripe, the pulleys. They jam as soon as they get near sand and consequently wear the bridle, which can cause failure if you don't check for wear.
The pulleys make the bridle work and make the kite perform as it is advertised to. Why then put cheap, plastic pulleys on a great kite?
It detracts from an otherwise excellent product and it's an easy fix especially for a kite company like Slingshot.
I don't believe the customer should have to do a mod to make the product safer and last longer.
Please correct me if I am wrong but the RPM is now into its 4th generation, I am not sure about the new model but last years had the same or similar cheap plastic pulley as the first model.
(Yes I do clean them after each use and make sure they are working and the bridle isn't worn etc)
Maybe a Slingshot representative will read this and respond or even better put a process in place to improve the pulleys on their kites.