Jim,
I don't disagree with what you are saying. Your premise assumes the air is either in the tip of the injector, or back against the plunger. If everything is done correctly, and the injector is working properly, this will be the case and there will be no issues.
However, if air is
somewhere in between the tip and plunger (actually in the plastic somewhere in the tube), regardless of how it got there, if you don't get it out prior to injecting, it will end up in your bait.
I think using you, Frank, and others at that level is a really point. This is the level of skill most of us are trying to attain. It's good to know it's possible, but it would be a rare person that would pick up an injector and be there day 1. That was the point of trying to illustrate some troubleshooting techniques. Now the source has been narrowed, it will be easier to focus on how to correct it.
The advanced tips and videos that you and other more experienced share are invaluable. I know I have learned a ton from you in many different areas. I'm sure others have as well.
Thank you for giving so freely of yourself and knowledge.
Jason
P.S. I'll join the "No Purging Campaign" - but you have to grant me a portion of your skills.
