Fan nozzle on k8200


Hi all, I have yet to install a fan nozzle on my printer. I have okish looking prints. They look much better after upgrading the z axis with a trapezoidal lead screw but still have some minor imperfections on them. Mainly small blobs and zits. Do you think a fan nozzle will help this and if so which one. I see a lot of comments saying the velleman nozzle is no good and I should try on of the many on thingiverse. Would this also help with bed adhesion? Sometimes the print sticks well and other times it lifts and warps. I am using a glass plate on the bed.