Got my order in today used the elite needles in the thunder edge x stylus coil using kingpin disposable cart grip and injecta using the hawk grip and one tattoo using the elite grip. So far id say they are my favorite carts. I also stick the plunger part of each cart in my a&d it lubes the plunger and i never had any ink come back out since i started doing this. i started when using slot locks because they would break all the time. i really wanna try these new rubber bands inside.