These are the kind that go into the V-jets on my mach15. I changed the jets out to up the flow and I put the no-drips in the new jets. Now it makes a noise from the jets when I pull the trigger. Is it showing some sort of resistance? I took them out for the time being, but I want them back in. What can I do to prevent the sound it makes? Is there a certain way to install the nodrips inside the Vjets?