Correct me if I'm wrong: 180 degree nozzle sprays straight out, 90 degree nozzle sprays at a right angle, 70 degree nozzle is what i confused about. Other pics on threads I have found show 70 degree nozzle spraying 70 degrees off of 180 degrees which is actually 110 degrees. I sprayed my nozzle and watched it, it actually reverses the flow of nitrous and sprays back at a tighter angle than 90 degrees(70 degrees). Why on other threads does everyone show 70 degree nozzles spraying at actually 110 degree angle. Will someone please help me understand? I have my 70 degreee nozzle coming in from bottom of lid and it spraying down and hitting neck of lid. 90 degree nozzle should do me fine.